Home / 71,473,139.20-106,939,162.93-42,342,612.98

Finding the Fourth Proportional to 71,473,139.20, 106,939,162.93 and 42,342,612.98

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Solution

The fourth proportional to 71,473,139.20, 106,939,162.93 and 42,342,612.98 is: 63,353,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,473,139.20 : 106,939,162.93 = 42,342,612.98 : x
  2. Step 2: Convert to fraction form
    71,473,139.20/106,939,162.93 = 42,342,612.98/x
  3. Step 3: Cross multiply
    71,473,139.20x = 106,939,162.93 × 42,342,612.98
  4. Step 4: Simplify right side
    71,473,139.20x = 4,528,083,587,788,781
  5. Step 5: Solve for x
    x = 4,528,083,587,788,781/71,473,139.20
  6. Step 6: Final answer
    x = 63,353,640.80

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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.