Home / 328,720,828.30-453,642,086.35-187,589,239.38

Finding the Fourth Proportional to 328,720,828.30, 453,642,086.35 and 187,589,239.38

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Solution

The fourth proportional to 328,720,828.30, 453,642,086.35 and 187,589,239.38 is: 258,877,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,720,828.30 : 453,642,086.35 = 187,589,239.38 : x
  2. Step 2: Convert to fraction form
    328,720,828.30/453,642,086.35 = 187,589,239.38/x
  3. Step 3: Cross multiply
    328,720,828.30x = 453,642,086.35 × 187,589,239.38
  4. Step 4: Simplify right side
    328,720,828.30x = 85,098,373,929,387,264
  5. Step 5: Solve for x
    x = 85,098,373,929,387,264/328,720,828.30
  6. Step 6: Final answer
    x = 258,877,340.90

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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.