Home / 112,752,812.10-169,129,218.15-79,874,328.90

Finding the Fourth Proportional to 112,752,812.10, 169,129,218.15 and 79,874,328.90

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Solution

The fourth proportional to 112,752,812.10, 169,129,218.15 and 79,874,328.90 is: 119,811,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752,812.10 : 169,129,218.15 = 79,874,328.90 : x
  2. Step 2: Convert to fraction form
    112,752,812.10/169,129,218.15 = 79,874,328.90/x
  3. Step 3: Cross multiply
    112,752,812.10x = 169,129,218.15 × 79,874,328.90
  4. Step 4: Simplify right side
    112,752,812.10x = 13,509,082,797,112,952
  5. Step 5: Solve for x
    x = 13,509,082,797,112,952/112,752,812.10
  6. Step 6: Final answer
    x = 119,811,493.35

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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.