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Finding the Fourth Proportional to 88,573,878.80, 132,748,843.80 and 78,944,080.40

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Solution

The fourth proportional to 88,573,878.80, 132,748,843.80 and 78,944,080.40 is: 118,316,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573,878.80 : 132,748,843.80 = 78,944,080.40 : x
  2. Step 2: Convert to fraction form
    88,573,878.80/132,748,843.80 = 78,944,080.40/x
  3. Step 3: Cross multiply
    88,573,878.80x = 132,748,843.80 × 78,944,080.40
  4. Step 4: Simplify right side
    88,573,878.80x = 10,479,735,397,954,242
  5. Step 5: Solve for x
    x = 10,479,735,397,954,242/88,573,878.80
  6. Step 6: Final answer
    x = 118,316,320.12

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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.