Home / 21,387,127.20-32,080,690.80-9,872,572.20

Finding the Fourth Proportional to 21,387,127.20, 32,080,690.80 and 9,872,572.20

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Solution

The fourth proportional to 21,387,127.20, 32,080,690.80 and 9,872,572.20 is: 14,808,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,127.20 : 32,080,690.80 = 9,872,572.20 : x
  2. Step 2: Convert to fraction form
    21,387,127.20/32,080,690.80 = 9,872,572.20/x
  3. Step 3: Cross multiply
    21,387,127.20x = 32,080,690.80 × 9,872,572.20
  4. Step 4: Simplify right side
    21,387,127.20x = 316,718,936,148,875.75
  5. Step 5: Solve for x
    x = 316,718,936,148,875.75/21,387,127.20
  6. Step 6: Final answer
    x = 14,808,858.30

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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.