Home / 96,899,917.20-145,217,165.40-78,984,013.20

Finding the Fourth Proportional to 96,899,917.20, 145,217,165.40 and 78,984,013.20

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Solution

The fourth proportional to 96,899,917.20, 145,217,165.40 and 78,984,013.20 is: 118,367,846.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,899,917.20 : 145,217,165.40 = 78,984,013.20 : x
  2. Step 2: Convert to fraction form
    96,899,917.20/145,217,165.40 = 78,984,013.20/x
  3. Step 3: Cross multiply
    96,899,917.20x = 145,217,165.40 × 78,984,013.20
  4. Step 4: Simplify right side
    96,899,917.20x = 11,469,834,508,820,184
  5. Step 5: Solve for x
    x = 11,469,834,508,820,184/96,899,917.20
  6. Step 6: Final answer
    x = 118,367,846.33

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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.