Home / 84,438,153.22-126,739,132.66-40,749,657.16

Finding the Fourth Proportional to 84,438,153.22, 126,739,132.66 and 40,749,657.16

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Solution

The fourth proportional to 84,438,153.22, 126,739,132.66 and 40,749,657.16 is: 61,164,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,438,153.22 : 126,739,132.66 = 40,749,657.16 : x
  2. Step 2: Convert to fraction form
    84,438,153.22/126,739,132.66 = 40,749,657.16/x
  3. Step 3: Cross multiply
    84,438,153.22x = 126,739,132.66 × 40,749,657.16
  4. Step 4: Simplify right side
    84,438,153.22x = 5,164,576,204,650,758
  5. Step 5: Solve for x
    x = 5,164,576,204,650,758/84,438,153.22
  6. Step 6: Final answer
    x = 61,164,011.86

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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.