Home / 521,622,016.80-782,433,025.20-368,567,008.80

Finding the Fourth Proportional to 521,622,016.80, 782,433,025.20 and 368,567,008.80

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Solution

The fourth proportional to 521,622,016.80, 782,433,025.20 and 368,567,008.80 is: 552,850,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,622,016.80 : 782,433,025.20 = 368,567,008.80 : x
  2. Step 2: Convert to fraction form
    521,622,016.80/782,433,025.20 = 368,567,008.80/x
  3. Step 3: Cross multiply
    521,622,016.80x = 782,433,025.20 × 368,567,008.80
  4. Step 4: Simplify right side
    521,622,016.80x = 288,378,999,684,299,072
  5. Step 5: Solve for x
    x = 288,378,999,684,299,072/521,622,016.80
  6. Step 6: Final answer
    x = 552,850,513.20

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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.