Home / 145,526,821.80-218,290,232.70-72,754,834.20

Finding the Fourth Proportional to 145,526,821.80, 218,290,232.70 and 72,754,834.20

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Solution

The fourth proportional to 145,526,821.80, 218,290,232.70 and 72,754,834.20 is: 109,132,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,526,821.80 : 218,290,232.70 = 72,754,834.20 : x
  2. Step 2: Convert to fraction form
    145,526,821.80/218,290,232.70 = 72,754,834.20/x
  3. Step 3: Cross multiply
    145,526,821.80x = 218,290,232.70 × 72,754,834.20
  4. Step 4: Simplify right side
    145,526,821.80x = 15,881,669,687,567,918
  5. Step 5: Solve for x
    x = 15,881,669,687,567,918/145,526,821.80
  6. Step 6: Final answer
    x = 109,132,251.30

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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.