Home / 28,387,493.28-42,670,123.92-18,734,140.08

Finding the Fourth Proportional to 28,387,493.28, 42,670,123.92 and 18,734,140.08

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Solution

The fourth proportional to 28,387,493.28, 42,670,123.92 and 18,734,140.08 is: 28,159,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,493.28 : 42,670,123.92 = 18,734,140.08 : x
  2. Step 2: Convert to fraction form
    28,387,493.28/42,670,123.92 = 18,734,140.08/x
  3. Step 3: Cross multiply
    28,387,493.28x = 42,670,123.92 × 18,734,140.08
  4. Step 4: Simplify right side
    28,387,493.28x = 799,388,078,748,238.62
  5. Step 5: Solve for x
    x = 799,388,078,748,238.62/28,387,493.28
  6. Step 6: Final answer
    x = 28,159,868.53

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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.