Home / 523,346,455.65-722,222,885.22-288,405,545.79

Finding the Fourth Proportional to 523,346,455.65, 722,222,885.22 and 288,405,545.79

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Solution

The fourth proportional to 523,346,455.65, 722,222,885.22 and 288,405,545.79 is: 398,002,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,455.65 : 722,222,885.22 = 288,405,545.79 : x
  2. Step 2: Convert to fraction form
    523,346,455.65/722,222,885.22 = 288,405,545.79/x
  3. Step 3: Cross multiply
    523,346,455.65x = 722,222,885.22 × 288,405,545.79
  4. Step 4: Simplify right side
    523,346,455.65x = 208,293,085,393,902,656
  5. Step 5: Solve for x
    x = 208,293,085,393,902,656/523,346,455.65
  6. Step 6: Final answer
    x = 398,002,285.38

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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.