Home / 523,661,850.36-723,343,165.29-388,146,805.65

Finding the Fourth Proportional to 523,661,850.36, 723,343,165.29 and 388,146,805.65

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Solution

The fourth proportional to 523,661,850.36, 723,343,165.29 and 388,146,805.65 is: 536,153,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,661,850.36 : 723,343,165.29 = 388,146,805.65 : x
  2. Step 2: Convert to fraction form
    523,661,850.36/723,343,165.29 = 388,146,805.65/x
  3. Step 3: Cross multiply
    523,661,850.36x = 723,343,165.29 × 388,146,805.65
  4. Step 4: Simplify right side
    523,661,850.36x = 280,763,338,996,073,408
  5. Step 5: Solve for x
    x = 280,763,338,996,073,408/523,661,850.36
  6. Step 6: Final answer
    x = 536,153,891.68

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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.