Home / 155,333,645.80-233,149,767.90-78,743,156.20

Finding the Fourth Proportional to 155,333,645.80, 233,149,767.90 and 78,743,156.20

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Solution

The fourth proportional to 155,333,645.80, 233,149,767.90 and 78,743,156.20 is: 118,190,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,333,645.80 : 233,149,767.90 = 78,743,156.20 : x
  2. Step 2: Convert to fraction form
    155,333,645.80/233,149,767.90 = 78,743,156.20/x
  3. Step 3: Cross multiply
    155,333,645.80x = 233,149,767.90 × 78,743,156.20
  4. Step 4: Simplify right side
    155,333,645.80x = 18,358,948,591,743,448
  5. Step 5: Solve for x
    x = 18,358,948,591,743,448/155,333,645.80
  6. Step 6: Final answer
    x = 118,190,418.42

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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.