Home / 149,496,078.72-206,309,535.36-86,767,472.64

Finding the Fourth Proportional to 149,496,078.72, 206,309,535.36 and 86,767,472.64

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Solution

The fourth proportional to 149,496,078.72, 206,309,535.36 and 86,767,472.64 is: 119,741,983.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,496,078.72 : 206,309,535.36 = 86,767,472.64 : x
  2. Step 2: Convert to fraction form
    149,496,078.72/206,309,535.36 = 86,767,472.64/x
  3. Step 3: Cross multiply
    149,496,078.72x = 206,309,535.36 × 86,767,472.64
  4. Step 4: Simplify right side
    149,496,078.72x = 17,900,956,964,719,914
  5. Step 5: Solve for x
    x = 17,900,956,964,719,914/149,496,078.72
  6. Step 6: Final answer
    x = 119,741,983.32

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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.