Home / 1,207,224,155.40-1,810,836,233.10-378,247,054.20

Finding the Fourth Proportional to 1,207,224,155.40, 1,810,836,233.10 and 378,247,054.20

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Solution

The fourth proportional to 1,207,224,155.40, 1,810,836,233.10 and 378,247,054.20 is: 567,370,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,224,155.40 : 1,810,836,233.10 = 378,247,054.20 : x
  2. Step 2: Convert to fraction form
    1,207,224,155.40/1,810,836,233.10 = 378,247,054.20/x
  3. Step 3: Cross multiply
    1,207,224,155.40x = 1,810,836,233.10 × 378,247,054.20
  4. Step 4: Simplify right side
    1,207,224,155.40x = 684,943,470,808,699,520
  5. Step 5: Solve for x
    x = 684,943,470,808,699,520/1,207,224,155.40
  6. Step 6: Final answer
    x = 567,370,581.30

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Half scale
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Double scale
Find fourth proportional to 1,207,224,156.40, 1,810,836,234.60 and 378,247,055.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.