Home / 21,942,642.80-32,913,964.20-18,695,385.20

Finding the Fourth Proportional to 21,942,642.80, 32,913,964.20 and 18,695,385.20

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Solution

The fourth proportional to 21,942,642.80, 32,913,964.20 and 18,695,385.20 is: 28,043,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,942,642.80 : 32,913,964.20 = 18,695,385.20 : x
  2. Step 2: Convert to fraction form
    21,942,642.80/32,913,964.20 = 18,695,385.20/x
  3. Step 3: Cross multiply
    21,942,642.80x = 32,913,964.20 × 18,695,385.20
  4. Step 4: Simplify right side
    21,942,642.80x = 615,339,239,178,009.75
  5. Step 5: Solve for x
    x = 615,339,239,178,009.75/21,942,642.80
  6. Step 6: Final answer
    x = 28,043,077.80

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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.