Home / 108,804,006.20-163,206,009.30-84,145,143.80

Finding the Fourth Proportional to 108,804,006.20, 163,206,009.30 and 84,145,143.80

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Solution

The fourth proportional to 108,804,006.20, 163,206,009.30 and 84,145,143.80 is: 126,217,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,804,006.20 : 163,206,009.30 = 84,145,143.80 : x
  2. Step 2: Convert to fraction form
    108,804,006.20/163,206,009.30 = 84,145,143.80/x
  3. Step 3: Cross multiply
    108,804,006.20x = 163,206,009.30 × 84,145,143.80
  4. Step 4: Simplify right side
    108,804,006.20x = 13,732,993,121,572,638
  5. Step 5: Solve for x
    x = 13,732,993,121,572,638/108,804,006.20
  6. Step 6: Final answer
    x = 126,217,715.70

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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.