Home / 521,552,491.20-782,328,736.80-314,928,230.40

Finding the Fourth Proportional to 521,552,491.20, 782,328,736.80 and 314,928,230.40

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Solution

The fourth proportional to 521,552,491.20, 782,328,736.80 and 314,928,230.40 is: 472,392,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,552,491.20 : 782,328,736.80 = 314,928,230.40 : x
  2. Step 2: Convert to fraction form
    521,552,491.20/782,328,736.80 = 314,928,230.40/x
  3. Step 3: Cross multiply
    521,552,491.20x = 782,328,736.80 × 314,928,230.40
  4. Step 4: Simplify right side
    521,552,491.20x = 246,377,404,671,491,328
  5. Step 5: Solve for x
    x = 246,377,404,671,491,328/521,552,491.20
  6. Step 6: Final answer
    x = 472,392,345.60

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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.