Home / 108,875,008.80-163,312,513.20-78,264,007.20

Finding the Fourth Proportional to 108,875,008.80, 163,312,513.20 and 78,264,007.20

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Solution

The fourth proportional to 108,875,008.80, 163,312,513.20 and 78,264,007.20 is: 117,396,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,875,008.80 : 163,312,513.20 = 78,264,007.20 : x
  2. Step 2: Convert to fraction form
    108,875,008.80/163,312,513.20 = 78,264,007.20/x
  3. Step 3: Cross multiply
    108,875,008.80x = 163,312,513.20 × 78,264,007.20
  4. Step 4: Simplify right side
    108,875,008.80x = 12,781,491,708,934,894
  5. Step 5: Solve for x
    x = 12,781,491,708,934,894/108,875,008.80
  6. Step 6: Final answer
    x = 117,396,010.80

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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.