Home / 78,546,979.28-108,394,830.95-45,526,381.89

Finding the Fourth Proportional to 78,546,979.28, 108,394,830.95 and 45,526,381.89

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Solution

The fourth proportional to 78,546,979.28, 108,394,830.95 and 45,526,381.89 is: 62,826,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546,979.28 : 108,394,830.95 = 45,526,381.89 : x
  2. Step 2: Convert to fraction form
    78,546,979.28/108,394,830.95 = 45,526,381.89/x
  3. Step 3: Cross multiply
    78,546,979.28x = 108,394,830.95 × 45,526,381.89
  4. Step 4: Simplify right side
    78,546,979.28x = 4,934,824,468,731,692
  5. Step 5: Solve for x
    x = 4,934,824,468,731,692/78,546,979.28
  6. Step 6: Final answer
    x = 62,826,406.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.