Home / 311,986,065.24-430,535,509.88-172,753,837.65

Finding the Fourth Proportional to 311,986,065.24, 430,535,509.88 and 172,753,837.65

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Solution

The fourth proportional to 311,986,065.24, 430,535,509.88 and 172,753,837.65 is: 238,397,383.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,986,065.24 : 430,535,509.88 = 172,753,837.65 : x
  2. Step 2: Convert to fraction form
    311,986,065.24/430,535,509.88 = 172,753,837.65/x
  3. Step 3: Cross multiply
    311,986,065.24x = 430,535,509.88 × 172,753,837.65
  4. Step 4: Simplify right side
    311,986,065.24x = 74,376,661,575,505,728
  5. Step 5: Solve for x
    x = 74,376,661,575,505,728/311,986,065.24
  6. Step 6: Final answer
    x = 238,397,383.29

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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.