Home / 78,744,747.60-118,117,121.40-49,897,342.80

Finding the Fourth Proportional to 78,744,747.60, 118,117,121.40 and 49,897,342.80

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Solution

The fourth proportional to 78,744,747.60, 118,117,121.40 and 49,897,342.80 is: 74,846,014.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,744,747.60 : 118,117,121.40 = 49,897,342.80 : x
  2. Step 2: Convert to fraction form
    78,744,747.60/118,117,121.40 = 49,897,342.80/x
  3. Step 3: Cross multiply
    78,744,747.60x = 118,117,121.40 × 49,897,342.80
  4. Step 4: Simplify right side
    78,744,747.60x = 5,893,730,497,045,016
  5. Step 5: Solve for x
    x = 5,893,730,497,045,016/78,744,747.60
  6. Step 6: Final answer
    x = 74,846,014.20

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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.