Home / 19,953,687.30-29,895,101.55-18,678,228.90

Finding the Fourth Proportional to 19,953,687.30, 29,895,101.55 and 18,678,228.90

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Solution

The fourth proportional to 19,953,687.30, 29,895,101.55 and 18,678,228.90 is: 27,984,178.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953,687.30 : 29,895,101.55 = 18,678,228.90 : x
  2. Step 2: Convert to fraction form
    19,953,687.30/29,895,101.55 = 18,678,228.90/x
  3. Step 3: Cross multiply
    19,953,687.30x = 29,895,101.55 × 18,678,228.90
  4. Step 4: Simplify right side
    19,953,687.30x = 558,387,549,739,644.75
  5. Step 5: Solve for x
    x = 558,387,549,739,644.75/19,953,687.30
  6. Step 6: Final answer
    x = 27,984,178.63

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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.