Home / 145,536,642.80-218,304,964.20-72,764,655.20

Finding the Fourth Proportional to 145,536,642.80, 218,304,964.20 and 72,764,655.20

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Solution

The fourth proportional to 145,536,642.80, 218,304,964.20 and 72,764,655.20 is: 109,146,982.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,642.80 : 218,304,964.20 = 72,764,655.20 : x
  2. Step 2: Convert to fraction form
    145,536,642.80/218,304,964.20 = 72,764,655.20/x
  3. Step 3: Cross multiply
    145,536,642.80x = 218,304,964.20 × 72,764,655.20
  4. Step 4: Simplify right side
    145,536,642.80x = 15,884,885,448,461,344
  5. Step 5: Solve for x
    x = 15,884,885,448,461,344/145,536,642.80
  6. Step 6: Final answer
    x = 109,146,982.80

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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.