Home / 177,500,761.60-266,251,142.40-128,749,907.20

Finding the Fourth Proportional to 177,500,761.60, 266,251,142.40 and 128,749,907.20

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Solution

The fourth proportional to 177,500,761.60, 266,251,142.40 and 128,749,907.20 is: 193,124,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,500,761.60 : 266,251,142.40 = 128,749,907.20 : x
  2. Step 2: Convert to fraction form
    177,500,761.60/266,251,142.40 = 128,749,907.20/x
  3. Step 3: Cross multiply
    177,500,761.60x = 266,251,142.40 × 128,749,907.20
  4. Step 4: Simplify right side
    177,500,761.60x = 34,279,809,875,893,988
  5. Step 5: Solve for x
    x = 34,279,809,875,893,988/177,500,761.60
  6. Step 6: Final answer
    x = 193,124,860.80

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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.