Home / 123,640,001.60-185,460,002.40-78,253,044.80

Finding the Fourth Proportional to 123,640,001.60, 185,460,002.40 and 78,253,044.80

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Solution

The fourth proportional to 123,640,001.60, 185,460,002.40 and 78,253,044.80 is: 117,379,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,640,001.60 : 185,460,002.40 = 78,253,044.80 : x
  2. Step 2: Convert to fraction form
    123,640,001.60/185,460,002.40 = 78,253,044.80/x
  3. Step 3: Cross multiply
    123,640,001.60x = 185,460,002.40 × 78,253,044.80
  4. Step 4: Simplify right side
    123,640,001.60x = 14,512,809,876,415,308
  5. Step 5: Solve for x
    x = 14,512,809,876,415,308/123,640,001.60
  6. Step 6: Final answer
    x = 117,379,567.20

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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.