Home / 126,371,446.40-189,557,169.60-103,413,195.20

Finding the Fourth Proportional to 126,371,446.40, 189,557,169.60 and 103,413,195.20

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Solution

The fourth proportional to 126,371,446.40, 189,557,169.60 and 103,413,195.20 is: 155,119,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,371,446.40 : 189,557,169.60 = 103,413,195.20 : x
  2. Step 2: Convert to fraction form
    126,371,446.40/189,557,169.60 = 103,413,195.20/x
  3. Step 3: Cross multiply
    126,371,446.40x = 189,557,169.60 × 103,413,195.20
  4. Step 4: Simplify right side
    126,371,446.40x = 19,602,712,581,404,304
  5. Step 5: Solve for x
    x = 19,602,712,581,404,304/126,371,446.40
  6. Step 6: Final answer
    x = 155,119,792.80

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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.