Home / 126,997,243.20-190,495,864.80-40,744,368.90

Finding the Fourth Proportional to 126,997,243.20, 190,495,864.80 and 40,744,368.90

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Solution

The fourth proportional to 126,997,243.20, 190,495,864.80 and 40,744,368.90 is: 61,116,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,997,243.20 : 190,495,864.80 = 40,744,368.90 : x
  2. Step 2: Convert to fraction form
    126,997,243.20/190,495,864.80 = 40,744,368.90/x
  3. Step 3: Cross multiply
    126,997,243.20x = 190,495,864.80 × 40,744,368.90
  4. Step 4: Simplify right side
    126,997,243.20x = 7,761,633,789,335,725
  5. Step 5: Solve for x
    x = 7,761,633,789,335,725/126,997,243.20
  6. Step 6: Final answer
    x = 61,116,553.35

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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.