Home / 83,238,532.40-124,857,798.60-81,537,921.20

Finding the Fourth Proportional to 83,238,532.40, 124,857,798.60 and 81,537,921.20

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Solution

The fourth proportional to 83,238,532.40, 124,857,798.60 and 81,537,921.20 is: 122,306,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,238,532.40 : 124,857,798.60 = 81,537,921.20 : x
  2. Step 2: Convert to fraction form
    83,238,532.40/124,857,798.60 = 81,537,921.20/x
  3. Step 3: Cross multiply
    83,238,532.40x = 124,857,798.60 × 81,537,921.20
  4. Step 4: Simplify right side
    83,238,532.40x = 10,180,645,343,452,270
  5. Step 5: Solve for x
    x = 10,180,645,343,452,270/83,238,532.40
  6. Step 6: Final answer
    x = 122,306,881.80

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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.