Home / 499,392,005.20-749,088,007.80-438,925,829.20

Finding the Fourth Proportional to 499,392,005.20, 749,088,007.80 and 438,925,829.20

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Solution

The fourth proportional to 499,392,005.20, 749,088,007.80 and 438,925,829.20 is: 658,388,743.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,392,005.20 : 749,088,007.80 = 438,925,829.20 : x
  2. Step 2: Convert to fraction form
    499,392,005.20/749,088,007.80 = 438,925,829.20/x
  3. Step 3: Cross multiply
    499,392,005.20x = 749,088,007.80 × 438,925,829.20
  4. Step 4: Simplify right side
    499,392,005.20x = 328,794,074,967,391,040
  5. Step 5: Solve for x
    x = 328,794,074,967,391,040/499,392,005.20
  6. Step 6: Final answer
    x = 658,388,743.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.