Home / 131,220,007.40-196,830,011.10-129,306,819.80

Finding the Fourth Proportional to 131,220,007.40, 196,830,011.10 and 129,306,819.80

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Solution

The fourth proportional to 131,220,007.40, 196,830,011.10 and 129,306,819.80 is: 193,960,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,007.40 : 196,830,011.10 = 129,306,819.80 : x
  2. Step 2: Convert to fraction form
    131,220,007.40/196,830,011.10 = 129,306,819.80/x
  3. Step 3: Cross multiply
    131,220,007.40x = 196,830,011.10 × 129,306,819.80
  4. Step 4: Simplify right side
    131,220,007.40x = 25,451,462,776,539,700
  5. Step 5: Solve for x
    x = 25,451,462,776,539,700/131,220,007.40
  6. Step 6: Final answer
    x = 193,960,229.70

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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.