Home / 78,739,007.40-118,108,511.10-62,476,912.80

Finding the Fourth Proportional to 78,739,007.40, 118,108,511.10 and 62,476,912.80

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Solution

The fourth proportional to 78,739,007.40, 118,108,511.10 and 62,476,912.80 is: 93,715,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,739,007.40 : 118,108,511.10 = 62,476,912.80 : x
  2. Step 2: Convert to fraction form
    78,739,007.40/118,108,511.10 = 62,476,912.80/x
  3. Step 3: Cross multiply
    78,739,007.40x = 118,108,511.10 × 62,476,912.80
  4. Step 4: Simplify right side
    78,739,007.40x = 7,379,055,148,932,531
  5. Step 5: Solve for x
    x = 7,379,055,148,932,531/78,739,007.40
  6. Step 6: Final answer
    x = 93,715,369.20

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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.