Home / 80,736,815.70-121,105,223.55-71,170,877.70

Finding the Fourth Proportional to 80,736,815.70, 121,105,223.55 and 71,170,877.70

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Solution

The fourth proportional to 80,736,815.70, 121,105,223.55 and 71,170,877.70 is: 106,756,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,736,815.70 : 121,105,223.55 = 71,170,877.70 : x
  2. Step 2: Convert to fraction form
    80,736,815.70/121,105,223.55 = 71,170,877.70/x
  3. Step 3: Cross multiply
    80,736,815.70x = 121,105,223.55 × 71,170,877.70
  4. Step 4: Simplify right side
    80,736,815.70x = 8,619,165,054,108,210
  5. Step 5: Solve for x
    x = 8,619,165,054,108,210/80,736,815.70
  6. Step 6: Final answer
    x = 106,756,316.55

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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.