Home / 115,017,315.65-172,398,181.29-87,633,329.75

Finding the Fourth Proportional to 115,017,315.65, 172,398,181.29 and 87,633,329.75

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Solution

The fourth proportional to 115,017,315.65, 172,398,181.29 and 87,633,329.75 is: 131,352,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,017,315.65 : 172,398,181.29 = 87,633,329.75 : x
  2. Step 2: Convert to fraction form
    115,017,315.65/172,398,181.29 = 87,633,329.75/x
  3. Step 3: Cross multiply
    115,017,315.65x = 172,398,181.29 × 87,633,329.75
  4. Step 4: Simplify right side
    115,017,315.65x = 15,107,826,669,286,850
  5. Step 5: Solve for x
    x = 15,107,826,669,286,850/115,017,315.65
  6. Step 6: Final answer
    x = 131,352,627.94

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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.