Home / 1,208,819,233.80-1,813,228,850.70-391,014,203.40

Finding the Fourth Proportional to 1,208,819,233.80, 1,813,228,850.70 and 391,014,203.40

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Solution

The fourth proportional to 1,208,819,233.80, 1,813,228,850.70 and 391,014,203.40 is: 586,521,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,819,233.80 : 1,813,228,850.70 = 391,014,203.40 : x
  2. Step 2: Convert to fraction form
    1,208,819,233.80/1,813,228,850.70 = 391,014,203.40/x
  3. Step 3: Cross multiply
    1,208,819,233.80x = 1,813,228,850.70 × 391,014,203.40
  4. Step 4: Simplify right side
    1,208,819,233.80x = 708,998,234,638,358,016
  5. Step 5: Solve for x
    x = 708,998,234,638,358,016/1,208,819,233.80
  6. Step 6: Final answer
    x = 586,521,305.10

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Half scale
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Double scale
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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.