Home / 101,438,407.50-139,985,002.35-57,979,276.62

Finding the Fourth Proportional to 101,438,407.50, 139,985,002.35 and 57,979,276.62

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Solution

The fourth proportional to 101,438,407.50, 139,985,002.35 and 57,979,276.62 is: 80,011,401.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,438,407.50 : 139,985,002.35 = 57,979,276.62 : x
  2. Step 2: Convert to fraction form
    101,438,407.50/139,985,002.35 = 57,979,276.62/x
  3. Step 3: Cross multiply
    101,438,407.50x = 139,985,002.35 × 57,979,276.62
  4. Step 4: Simplify right side
    101,438,407.50x = 8,116,229,173,901,999
  5. Step 5: Solve for x
    x = 8,116,229,173,901,999/101,438,407.50
  6. Step 6: Final answer
    x = 80,011,401.74

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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.