Home / 147,520,108.70-221,448,124.65-86,969,951.90

Finding the Fourth Proportional to 147,520,108.70, 221,448,124.65 and 86,969,951.90

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Solution

The fourth proportional to 147,520,108.70, 221,448,124.65 and 86,969,951.90 is: 130,553,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,520,108.70 : 221,448,124.65 = 86,969,951.90 : x
  2. Step 2: Convert to fraction form
    147,520,108.70/221,448,124.65 = 86,969,951.90/x
  3. Step 3: Cross multiply
    147,520,108.70x = 221,448,124.65 × 86,969,951.90
  4. Step 4: Simplify right side
    147,520,108.70x = 19,259,332,749,155,708
  5. Step 5: Solve for x
    x = 19,259,332,749,155,708/147,520,108.70
  6. Step 6: Final answer
    x = 130,553,949.01

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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.