Home / 206,016,740.40-309,025,110.60-69,702,123.90

Finding the Fourth Proportional to 206,016,740.40, 309,025,110.60 and 69,702,123.90

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Solution

The fourth proportional to 206,016,740.40, 309,025,110.60 and 69,702,123.90 is: 104,553,185.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,016,740.40 : 309,025,110.60 = 69,702,123.90 : x
  2. Step 2: Convert to fraction form
    206,016,740.40/309,025,110.60 = 69,702,123.90/x
  3. Step 3: Cross multiply
    206,016,740.40x = 309,025,110.60 × 69,702,123.90
  4. Step 4: Simplify right side
    206,016,740.40x = 21,539,706,547,252,408
  5. Step 5: Solve for x
    x = 21,539,706,547,252,408/206,016,740.40
  6. Step 6: Final answer
    x = 104,553,185.85

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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.