Home / 88,571,920.40-132,857,880.60-81,769,475.60

Finding the Fourth Proportional to 88,571,920.40, 132,857,880.60 and 81,769,475.60

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Solution

The fourth proportional to 88,571,920.40, 132,857,880.60 and 81,769,475.60 is: 122,654,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,571,920.40 : 132,857,880.60 = 81,769,475.60 : x
  2. Step 2: Convert to fraction form
    88,571,920.40/132,857,880.60 = 81,769,475.60/x
  3. Step 3: Cross multiply
    88,571,920.40x = 132,857,880.60 × 81,769,475.60
  4. Step 4: Simplify right side
    88,571,920.40x = 10,863,719,225,989,412
  5. Step 5: Solve for x
    x = 10,863,719,225,989,412/88,571,920.40
  6. Step 6: Final answer
    x = 122,654,213.40

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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.