Home / 80,919,007.20-121,378,510.80-35,480,801.70

Finding the Fourth Proportional to 80,919,007.20, 121,378,510.80 and 35,480,801.70

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Solution

The fourth proportional to 80,919,007.20, 121,378,510.80 and 35,480,801.70 is: 53,221,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,919,007.20 : 121,378,510.80 = 35,480,801.70 : x
  2. Step 2: Convert to fraction form
    80,919,007.20/121,378,510.80 = 35,480,801.70/x
  3. Step 3: Cross multiply
    80,919,007.20x = 121,378,510.80 × 35,480,801.70
  4. Step 4: Simplify right side
    80,919,007.20x = 4,306,606,872,336,108.50
  5. Step 5: Solve for x
    x = 4,306,606,872,336,108.50/80,919,007.20
  6. Step 6: Final answer
    x = 53,221,202.55

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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.