Home / 131,220,005.40-196,830,008.10-129,306,817.80

Finding the Fourth Proportional to 131,220,005.40, 196,830,008.10 and 129,306,817.80

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Solution

The fourth proportional to 131,220,005.40, 196,830,008.10 and 129,306,817.80 is: 193,960,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,220,005.40 : 196,830,008.10 = 129,306,817.80 : x
  2. Step 2: Convert to fraction form
    131,220,005.40/196,830,008.10 = 129,306,817.80/x
  3. Step 3: Cross multiply
    131,220,005.40x = 196,830,008.10 × 129,306,817.80
  4. Step 4: Simplify right side
    131,220,005.40x = 25,451,461,994,959,224
  5. Step 5: Solve for x
    x = 25,451,461,994,959,224/131,220,005.40
  6. Step 6: Final answer
    x = 193,960,226.70

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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.