Home / 28,392,705.20-42,589,057.80-13,248,167.60

Finding the Fourth Proportional to 28,392,705.20, 42,589,057.80 and 13,248,167.60

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Solution

The fourth proportional to 28,392,705.20, 42,589,057.80 and 13,248,167.60 is: 19,872,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392,705.20 : 42,589,057.80 = 13,248,167.60 : x
  2. Step 2: Convert to fraction form
    28,392,705.20/42,589,057.80 = 13,248,167.60/x
  3. Step 3: Cross multiply
    28,392,705.20x = 42,589,057.80 × 13,248,167.60
  4. Step 4: Simplify right side
    28,392,705.20x = 564,226,975,660,487.25
  5. Step 5: Solve for x
    x = 564,226,975,660,487.25/28,392,705.20
  6. Step 6: Final answer
    x = 19,872,251.40

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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.