Home / 18,718,642.53-28,059,363.36-13,026,909.42

Finding the Fourth Proportional to 18,718,642.53, 28,059,363.36 and 13,026,909.42

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Solution

The fourth proportional to 18,718,642.53, 28,059,363.36 and 13,026,909.42 is: 19,527,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718,642.53 : 28,059,363.36 = 13,026,909.42 : x
  2. Step 2: Convert to fraction form
    18,718,642.53/28,059,363.36 = 13,026,909.42/x
  3. Step 3: Cross multiply
    18,718,642.53x = 28,059,363.36 × 13,026,909.42
  4. Step 4: Simplify right side
    18,718,642.53x = 365,526,784,873,586.81
  5. Step 5: Solve for x
    x = 365,526,784,873,586.81/18,718,642.53
  6. Step 6: Final answer
    x = 19,527,419.49

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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.