Home / 123,489,269.69-170,615,360.49-105,098,753.89

Finding the Fourth Proportional to 123,489,269.69, 170,615,360.49 and 105,098,753.89

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Solution

The fourth proportional to 123,489,269.69, 170,615,360.49 and 105,098,753.89 is: 145,206,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,489,269.69 : 170,615,360.49 = 105,098,753.89 : x
  2. Step 2: Convert to fraction form
    123,489,269.69/170,615,360.49 = 105,098,753.89/x
  3. Step 3: Cross multiply
    123,489,269.69x = 170,615,360.49 × 105,098,753.89
  4. Step 4: Simplify right side
    123,489,269.69x = 17,931,461,781,992,140
  5. Step 5: Solve for x
    x = 17,931,461,781,992,140/123,489,269.69
  6. Step 6: Final answer
    x = 145,206,638.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.