Home / 142,193,722.72-213,298,542.96-39,949,780

Finding the Fourth Proportional to 142,193,722.72, 213,298,542.96 and 39,949,780

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Solution

The fourth proportional to 142,193,722.72, 213,298,542.96 and 39,949,780 is: 59,926,906.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,193,722.72 : 213,298,542.96 = 39,949,780 : x
  2. Step 2: Convert to fraction form
    142,193,722.72/213,298,542.96 = 39,949,780/x
  3. Step 3: Cross multiply
    142,193,722.72x = 213,298,542.96 × 39,949,780
  4. Step 4: Simplify right side
    142,193,722.72x = 8,521,229,865,572,549
  5. Step 5: Solve for x
    x = 8,521,229,865,572,549/142,193,722.72
  6. Step 6: Final answer
    x = 59,926,906.07

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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.