Home / 523,346,501.76-722,222,948.64-288,405,591.88

Finding the Fourth Proportional to 523,346,501.76, 722,222,948.64 and 288,405,591.88

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Solution

The fourth proportional to 523,346,501.76, 722,222,948.64 and 288,405,591.88 is: 398,002,348.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,346,501.76 : 722,222,948.64 = 288,405,591.88 : x
  2. Step 2: Convert to fraction form
    523,346,501.76/722,222,948.64 = 288,405,591.88/x
  3. Step 3: Cross multiply
    523,346,501.76x = 722,222,948.64 × 288,405,591.88
  4. Step 4: Simplify right side
    523,346,501.76x = 208,293,136,971,838,048
  5. Step 5: Solve for x
    x = 208,293,136,971,838,048/523,346,501.76
  6. Step 6: Final answer
    x = 398,002,348.87

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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.