Home / 84,169,902.10-126,254,853.15-81,650,478.10

Finding the Fourth Proportional to 84,169,902.10, 126,254,853.15 and 81,650,478.10

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Solution

The fourth proportional to 84,169,902.10, 126,254,853.15 and 81,650,478.10 is: 122,475,717.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,169,902.10 : 126,254,853.15 = 81,650,478.10 : x
  2. Step 2: Convert to fraction form
    84,169,902.10/126,254,853.15 = 81,650,478.10/x
  3. Step 3: Cross multiply
    84,169,902.10x = 126,254,853.15 × 81,650,478.10
  4. Step 4: Simplify right side
    84,169,902.10x = 10,308,769,122,142,790
  5. Step 5: Solve for x
    x = 10,308,769,122,142,790/84,169,902.10
  6. Step 6: Final answer
    x = 122,475,717.15

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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.