Home / 726,996,856.80-1,090,495,285.20-612,205,600.80

Finding the Fourth Proportional to 726,996,856.80, 1,090,495,285.20 and 612,205,600.80

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Solution

The fourth proportional to 726,996,856.80, 1,090,495,285.20 and 612,205,600.80 is: 918,308,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,996,856.80 : 1,090,495,285.20 = 612,205,600.80 : x
  2. Step 2: Convert to fraction form
    726,996,856.80/1,090,495,285.20 = 612,205,600.80/x
  3. Step 3: Cross multiply
    726,996,856.80x = 1,090,495,285.20 × 612,205,600.80
  4. Step 4: Simplify right side
    726,996,856.80x = 667,607,321,245,433,344
  5. Step 5: Solve for x
    x = 667,607,321,245,433,344/726,996,856.80
  6. Step 6: Final answer
    x = 918,308,401.20

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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.