Home / 689,768,402.08-951,738,298.68-396,356,283.04

Finding the Fourth Proportional to 689,768,402.08, 951,738,298.68 and 396,356,283.04

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Solution

The fourth proportional to 689,768,402.08, 951,738,298.68 and 396,356,283.04 is: 546,890,018.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,402.08 : 951,738,298.68 = 396,356,283.04 : x
  2. Step 2: Convert to fraction form
    689,768,402.08/951,738,298.68 = 396,356,283.04/x
  3. Step 3: Cross multiply
    689,768,402.08x = 951,738,298.68 × 396,356,283.04
  4. Step 4: Simplify right side
    689,768,402.08x = 377,227,454,491,618,112
  5. Step 5: Solve for x
    x = 377,227,454,491,618,112/689,768,402.08
  6. Step 6: Final answer
    x = 546,890,018.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.