Home / 157,190,065.61-216,917,203.43-90,220,046.85

Finding the Fourth Proportional to 157,190,065.61, 216,917,203.43 and 90,220,046.85

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Solution

The fourth proportional to 157,190,065.61, 216,917,203.43 and 90,220,046.85 is: 124,500,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,190,065.61 : 216,917,203.43 = 90,220,046.85 : x
  2. Step 2: Convert to fraction form
    157,190,065.61/216,917,203.43 = 90,220,046.85/x
  3. Step 3: Cross multiply
    157,190,065.61x = 216,917,203.43 × 90,220,046.85
  4. Step 4: Simplify right side
    157,190,065.61x = 19,570,280,256,251,128
  5. Step 5: Solve for x
    x = 19,570,280,256,251,128/157,190,065.61
  6. Step 6: Final answer
    x = 124,500,744.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.