Home / 123,489,266.19-170,615,355.66-105,098,750.39

Finding the Fourth Proportional to 123,489,266.19, 170,615,355.66 and 105,098,750.39

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Solution

The fourth proportional to 123,489,266.19, 170,615,355.66 and 105,098,750.39 is: 145,206,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,489,266.19 : 170,615,355.66 = 105,098,750.39 : x
  2. Step 2: Convert to fraction form
    123,489,266.19/170,615,355.66 = 105,098,750.39/x
  3. Step 3: Cross multiply
    123,489,266.19x = 170,615,355.66 × 105,098,750.39
  4. Step 4: Simplify right side
    123,489,266.19x = 17,931,460,676,358,338
  5. Step 5: Solve for x
    x = 17,931,460,676,358,338/123,489,266.19
  6. Step 6: Final answer
    x = 145,206,633.98

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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.