Home / 84,056,825.20-126,085,237.80-69,707,918.20

Finding the Fourth Proportional to 84,056,825.20, 126,085,237.80 and 69,707,918.20

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Solution

The fourth proportional to 84,056,825.20, 126,085,237.80 and 69,707,918.20 is: 104,561,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,056,825.20 : 126,085,237.80 = 69,707,918.20 : x
  2. Step 2: Convert to fraction form
    84,056,825.20/126,085,237.80 = 69,707,918.20/x
  3. Step 3: Cross multiply
    84,056,825.20x = 126,085,237.80 × 69,707,918.20
  4. Step 4: Simplify right side
    84,056,825.20x = 8,789,139,442,789,948
  5. Step 5: Solve for x
    x = 8,789,139,442,789,948/84,056,825.20
  6. Step 6: Final answer
    x = 104,561,877.30

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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.