Home / 18,388,287.20-27,572,981.52-9,875,782.88

Finding the Fourth Proportional to 18,388,287.20, 27,572,981.52 and 9,875,782.88

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Solution

The fourth proportional to 18,388,287.20, 27,572,981.52 and 9,875,782.88 is: 14,808,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388,287.20 : 27,572,981.52 = 9,875,782.88 : x
  2. Step 2: Convert to fraction form
    18,388,287.20/27,572,981.52 = 9,875,782.88/x
  3. Step 3: Cross multiply
    18,388,287.20x = 27,572,981.52 × 9,875,782.88
  4. Step 4: Simplify right side
    18,388,287.20x = 272,304,778,845,772.41
  5. Step 5: Solve for x
    x = 272,304,778,845,772.41/18,388,287.20
  6. Step 6: Final answer
    x = 14,808,599.40

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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.