Home / 124,013,320.38-171,127,258.60-71,805,879.68

Finding the Fourth Proportional to 124,013,320.38, 171,127,258.60 and 71,805,879.68

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Solution

The fourth proportional to 124,013,320.38, 171,127,258.60 and 71,805,879.68 is: 99,085,673.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,013,320.38 : 171,127,258.60 = 71,805,879.68 : x
  2. Step 2: Convert to fraction form
    124,013,320.38/171,127,258.60 = 71,805,879.68/x
  3. Step 3: Cross multiply
    124,013,320.38x = 171,127,258.60 × 71,805,879.68
  4. Step 4: Simplify right side
    124,013,320.38x = 12,287,943,340,502,520
  5. Step 5: Solve for x
    x = 12,287,943,340,502,520/124,013,320.38
  6. Step 6: Final answer
    x = 99,085,673.24

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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.