Home / 135,439,061.65-186,899,650.16-76,702,147.22

Finding the Fourth Proportional to 135,439,061.65, 186,899,650.16 and 76,702,147.22

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Solution

The fourth proportional to 135,439,061.65, 186,899,650.16 and 76,702,147.22 is: 105,845,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,439,061.65 : 186,899,650.16 = 76,702,147.22 : x
  2. Step 2: Convert to fraction form
    135,439,061.65/186,899,650.16 = 76,702,147.22/x
  3. Step 3: Cross multiply
    135,439,061.65x = 186,899,650.16 × 76,702,147.22
  4. Step 4: Simplify right side
    135,439,061.65x = 14,335,604,482,022,554
  5. Step 5: Solve for x
    x = 14,335,604,482,022,554/135,439,061.65
  6. Step 6: Final answer
    x = 105,845,420.87

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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.