Home / 99,643,407.60-149,465,111.40-61,180,201.20

Finding the Fourth Proportional to 99,643,407.60, 149,465,111.40 and 61,180,201.20

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Solution

The fourth proportional to 99,643,407.60, 149,465,111.40 and 61,180,201.20 is: 91,770,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,407.60 : 149,465,111.40 = 61,180,201.20 : x
  2. Step 2: Convert to fraction form
    99,643,407.60/149,465,111.40 = 61,180,201.20/x
  3. Step 3: Cross multiply
    99,643,407.60x = 149,465,111.40 × 61,180,201.20
  4. Step 4: Simplify right side
    99,643,407.60x = 9,144,305,587,832,414
  5. Step 5: Solve for x
    x = 9,144,305,587,832,414/99,643,407.60
  6. Step 6: Final answer
    x = 91,770,301.80

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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.