Home / 149,985,619.28-224,774,155.82-84,438,021.68

Finding the Fourth Proportional to 149,985,619.28, 224,774,155.82 and 84,438,021.68

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Solution

The fourth proportional to 149,985,619.28, 224,774,155.82 and 84,438,021.68 is: 126,542,032.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,985,619.28 : 224,774,155.82 = 84,438,021.68 : x
  2. Step 2: Convert to fraction form
    149,985,619.28/224,774,155.82 = 84,438,021.68/x
  3. Step 3: Cross multiply
    149,985,619.28x = 224,774,155.82 × 84,438,021.68
  4. Step 4: Simplify right side
    149,985,619.28x = 18,979,485,040,686,796
  5. Step 5: Solve for x
    x = 18,979,485,040,686,796/149,985,619.28
  6. Step 6: Final answer
    x = 126,542,032.05

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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.