Home / 128,284,335.60-177,033,770.40-75,363,273.96

Finding the Fourth Proportional to 128,284,335.60, 177,033,770.40 and 75,363,273.96

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Solution

The fourth proportional to 128,284,335.60, 177,033,770.40 and 75,363,273.96 is: 104,002,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,284,335.60 : 177,033,770.40 = 75,363,273.96 : x
  2. Step 2: Convert to fraction form
    128,284,335.60/177,033,770.40 = 75,363,273.96/x
  3. Step 3: Cross multiply
    128,284,335.60x = 177,033,770.40 × 75,363,273.96
  4. Step 4: Simplify right side
    128,284,335.60x = 13,341,844,538,445,674
  5. Step 5: Solve for x
    x = 13,341,844,538,445,674/128,284,335.60
  6. Step 6: Final answer
    x = 104,002,133.05

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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.