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Finding the Fourth Proportional to 79,259,812.60, 118,889,718.90 and 57,648,753.40

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Solution

The fourth proportional to 79,259,812.60, 118,889,718.90 and 57,648,753.40 is: 86,473,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,259,812.60 : 118,889,718.90 = 57,648,753.40 : x
  2. Step 2: Convert to fraction form
    79,259,812.60/118,889,718.90 = 57,648,753.40/x
  3. Step 3: Cross multiply
    79,259,812.60x = 118,889,718.90 × 57,648,753.40
  4. Step 4: Simplify right side
    79,259,812.60x = 6,853,844,086,661,419
  5. Step 5: Solve for x
    x = 6,853,844,086,661,419/79,259,812.60
  6. Step 6: Final answer
    x = 86,473,130.10

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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.