Home / 129,348,003.80-194,022,005.70-120,781,962.20

Finding the Fourth Proportional to 129,348,003.80, 194,022,005.70 and 120,781,962.20

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Solution

The fourth proportional to 129,348,003.80, 194,022,005.70 and 120,781,962.20 is: 181,172,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,348,003.80 : 194,022,005.70 = 120,781,962.20 : x
  2. Step 2: Convert to fraction form
    129,348,003.80/194,022,005.70 = 120,781,962.20/x
  3. Step 3: Cross multiply
    129,348,003.80x = 194,022,005.70 × 120,781,962.20
  4. Step 4: Simplify right side
    129,348,003.80x = 23,434,358,558,425,584
  5. Step 5: Solve for x
    x = 23,434,358,558,425,584/129,348,003.80
  6. Step 6: Final answer
    x = 181,172,943.30

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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.