Home / 120,300,680.28-180,422,127.36-55,542,265.32

Finding the Fourth Proportional to 120,300,680.28, 180,422,127.36 and 55,542,265.32

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Solution

The fourth proportional to 120,300,680.28, 180,422,127.36 and 55,542,265.32 is: 83,300,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,300,680.28 : 180,422,127.36 = 55,542,265.32 : x
  2. Step 2: Convert to fraction form
    120,300,680.28/180,422,127.36 = 55,542,265.32/x
  3. Step 3: Cross multiply
    120,300,680.28x = 180,422,127.36 × 55,542,265.32
  4. Step 4: Simplify right side
    120,300,680.28x = 10,021,053,667,427,952
  5. Step 5: Solve for x
    x = 10,021,053,667,427,952/120,300,680.28
  6. Step 6: Final answer
    x = 83,300,058.19

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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.