Home / 90,786,959-125,324,661.56-61,034,862.20

Finding the Fourth Proportional to 90,786,959, 125,324,661.56 and 61,034,862.20

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Solution

The fourth proportional to 90,786,959, 125,324,661.56 and 61,034,862.20 is: 84,254,099.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,786,959 : 125,324,661.56 = 61,034,862.20 : x
  2. Step 2: Convert to fraction form
    90,786,959/125,324,661.56 = 61,034,862.20/x
  3. Step 3: Cross multiply
    90,786,959x = 125,324,661.56 × 61,034,862.20
  4. Step 4: Simplify right side
    90,786,959x = 7,649,173,448,576,238
  5. Step 5: Solve for x
    x = 7,649,173,448,576,238/90,786,959
  6. Step 6: Final answer
    x = 84,254,099.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.