Home / 131,316,938.40-196,676,809.20-82,943,997.60

Finding the Fourth Proportional to 131,316,938.40, 196,676,809.20 and 82,943,997.60

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Solution

The fourth proportional to 131,316,938.40, 196,676,809.20 and 82,943,997.60 is: 124,227,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,316,938.40 : 196,676,809.20 = 82,943,997.60 : x
  2. Step 2: Convert to fraction form
    131,316,938.40/196,676,809.20 = 82,943,997.60/x
  3. Step 3: Cross multiply
    131,316,938.40x = 196,676,809.20 × 82,943,997.60
  4. Step 4: Simplify right side
    131,316,938.40x = 16,313,160,790,260,456
  5. Step 5: Solve for x
    x = 16,313,160,790,260,456/131,316,938.40
  6. Step 6: Final answer
    x = 124,227,392.06

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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.