Home / 118,368,001.40-177,552,002.10-85,867,431.80

Finding the Fourth Proportional to 118,368,001.40, 177,552,002.10 and 85,867,431.80

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Solution

The fourth proportional to 118,368,001.40, 177,552,002.10 and 85,867,431.80 is: 128,801,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,368,001.40 : 177,552,002.10 = 85,867,431.80 : x
  2. Step 2: Convert to fraction form
    118,368,001.40/177,552,002.10 = 85,867,431.80/x
  3. Step 3: Cross multiply
    118,368,001.40x = 177,552,002.10 × 85,867,431.80
  4. Step 4: Simplify right side
    118,368,001.40x = 15,245,934,431,275,206
  5. Step 5: Solve for x
    x = 15,245,934,431,275,206/118,368,001.40
  6. Step 6: Final answer
    x = 128,801,147.70

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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.