Home / 521,622,007.30-782,433,010.95-368,566,999.30

Finding the Fourth Proportional to 521,622,007.30, 782,433,010.95 and 368,566,999.30

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Solution

The fourth proportional to 521,622,007.30, 782,433,010.95 and 368,566,999.30 is: 552,850,498.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,622,007.30 : 782,433,010.95 = 368,566,999.30 : x
  2. Step 2: Convert to fraction form
    521,622,007.30/782,433,010.95 = 368,566,999.30/x
  3. Step 3: Cross multiply
    521,622,007.30x = 782,433,010.95 × 368,566,999.30
  4. Step 4: Simplify right side
    521,622,007.30x = 288,378,986,999,105,600
  5. Step 5: Solve for x
    x = 288,378,986,999,105,600/521,622,007.30
  6. Step 6: Final answer
    x = 552,850,498.95

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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.