Home / 155,333,629.80-233,149,743.90-78,743,140.20

Finding the Fourth Proportional to 155,333,629.80, 233,149,743.90 and 78,743,140.20

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Solution

The fourth proportional to 155,333,629.80, 233,149,743.90 and 78,743,140.20 is: 118,190,394.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,333,629.80 : 233,149,743.90 = 78,743,140.20 : x
  2. Step 2: Convert to fraction form
    155,333,629.80/233,149,743.90 = 78,743,140.20/x
  3. Step 3: Cross multiply
    155,333,629.80x = 233,149,743.90 × 78,743,140.20
  4. Step 4: Simplify right side
    155,333,629.80x = 18,358,942,971,511,796
  5. Step 5: Solve for x
    x = 18,358,942,971,511,796/155,333,629.80
  6. Step 6: Final answer
    x = 118,190,394.41

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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.