Home / 664,302,209.40-996,453,314.10-660,475,834.20

Finding the Fourth Proportional to 664,302,209.40, 996,453,314.10 and 660,475,834.20

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Solution

The fourth proportional to 664,302,209.40, 996,453,314.10 and 660,475,834.20 is: 990,713,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,209.40 : 996,453,314.10 = 660,475,834.20 : x
  2. Step 2: Convert to fraction form
    664,302,209.40/996,453,314.10 = 660,475,834.20/x
  3. Step 3: Cross multiply
    664,302,209.40x = 996,453,314.10 × 660,475,834.20
  4. Step 4: Simplify right side
    664,302,209.40x = 658,133,333,871,552,128
  5. Step 5: Solve for x
    x = 658,133,333,871,552,128/664,302,209.40
  6. Step 6: Final answer
    x = 990,713,751.30

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Double scale
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Similar ratio
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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.