Home / 1,087,729,609.70-1,631,594,414.55-939,776,435.30

Finding the Fourth Proportional to 1,087,729,609.70, 1,631,594,414.55 and 939,776,435.30

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Solution

The fourth proportional to 1,087,729,609.70, 1,631,594,414.55 and 939,776,435.30 is: 1,409,664,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,729,609.70 : 1,631,594,414.55 = 939,776,435.30 : x
  2. Step 2: Convert to fraction form
    1,087,729,609.70/1,631,594,414.55 = 939,776,435.30/x
  3. Step 3: Cross multiply
    1,087,729,609.70x = 1,631,594,414.55 × 939,776,435.30
  4. Step 4: Simplify right side
    1,087,729,609.70x = 1,533,333,982,761,189,376
  5. Step 5: Solve for x
    x = 1,533,333,982,761,189,376/1,087,729,609.70
  6. Step 6: Final answer
    x = 1,409,664,652.95

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Double scale
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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.