Home / 125,396,381.27-188,020,065.78-47,678,968.24

Finding the Fourth Proportional to 125,396,381.27, 188,020,065.78 and 47,678,968.24

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Solution

The fourth proportional to 125,396,381.27, 188,020,065.78 and 47,678,968.24 is: 71,490,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,396,381.27 : 188,020,065.78 = 47,678,968.24 : x
  2. Step 2: Convert to fraction form
    125,396,381.27/188,020,065.78 = 47,678,968.24/x
  3. Step 3: Cross multiply
    125,396,381.27x = 188,020,065.78 × 47,678,968.24
  4. Step 4: Simplify right side
    125,396,381.27x = 8,964,602,744,337,280
  5. Step 5: Solve for x
    x = 8,964,602,744,337,280/125,396,381.27
  6. Step 6: Final answer
    x = 71,490,123.19

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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.