Home / 145,536,543.80-218,304,815.70-72,764,556.20

Finding the Fourth Proportional to 145,536,543.80, 218,304,815.70 and 72,764,556.20

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Solution

The fourth proportional to 145,536,543.80, 218,304,815.70 and 72,764,556.20 is: 109,146,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,543.80 : 218,304,815.70 = 72,764,556.20 : x
  2. Step 2: Convert to fraction form
    145,536,543.80/218,304,815.70 = 72,764,556.20/x
  3. Step 3: Cross multiply
    145,536,543.80x = 218,304,815.70 × 72,764,556.20
  4. Step 4: Simplify right side
    145,536,543.80x = 15,884,853,030,733,292
  5. Step 5: Solve for x
    x = 15,884,853,030,733,292/145,536,543.80
  6. Step 6: Final answer
    x = 109,146,834.30

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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.