Home / 28,292,242.40-42,438,363.60-9,123,624.80

Finding the Fourth Proportional to 28,292,242.40, 42,438,363.60 and 9,123,624.80

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Solution

The fourth proportional to 28,292,242.40, 42,438,363.60 and 9,123,624.80 is: 13,685,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292,242.40 : 42,438,363.60 = 9,123,624.80 : x
  2. Step 2: Convert to fraction form
    28,292,242.40/42,438,363.60 = 9,123,624.80/x
  3. Step 3: Cross multiply
    28,292,242.40x = 42,438,363.60 × 9,123,624.80
  4. Step 4: Simplify right side
    28,292,242.40x = 387,191,706,612,377.31
  5. Step 5: Solve for x
    x = 387,191,706,612,377.31/28,292,242.40
  6. Step 6: Final answer
    x = 13,685,437.20

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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.