Home / 328,720,638.59-453,641,824.37-187,589,049.16

Finding the Fourth Proportional to 328,720,638.59, 453,641,824.37 and 187,589,049.16

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Solution

The fourth proportional to 328,720,638.59, 453,641,824.37 and 187,589,049.16 is: 258,877,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,720,638.59 : 453,641,824.37 = 187,589,049.16 : x
  2. Step 2: Convert to fraction form
    328,720,638.59/453,641,824.37 = 187,589,049.16/x
  3. Step 3: Cross multiply
    328,720,638.59x = 453,641,824.37 × 187,589,049.16
  4. Step 4: Simplify right side
    328,720,638.59x = 85,098,238,491,838,064
  5. Step 5: Solve for x
    x = 85,098,238,491,838,064/328,720,638.59
  6. Step 6: Final answer
    x = 258,877,078.29

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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.