Home / 78,739,008.40-118,108,512.60-62,476,913.80

Finding the Fourth Proportional to 78,739,008.40, 118,108,512.60 and 62,476,913.80

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Solution

The fourth proportional to 78,739,008.40, 118,108,512.60 and 62,476,913.80 is: 93,715,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,739,008.40 : 118,108,512.60 = 62,476,913.80 : x
  2. Step 2: Convert to fraction form
    78,739,008.40/118,108,512.60 = 62,476,913.80/x
  3. Step 3: Cross multiply
    78,739,008.40x = 118,108,512.60 × 62,476,913.80
  4. Step 4: Simplify right side
    78,739,008.40x = 7,379,055,360,756,413
  5. Step 5: Solve for x
    x = 7,379,055,360,756,413/78,739,008.40
  6. Step 6: Final answer
    x = 93,715,370.70

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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.