Home / 663,957,436.80-996,219,590.40-318,733,363.20

Finding the Fourth Proportional to 663,957,436.80, 996,219,590.40 and 318,733,363.20

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Solution

The fourth proportional to 663,957,436.80, 996,219,590.40 and 318,733,363.20 is: 478,236,108.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,957,436.80 : 996,219,590.40 = 318,733,363.20 : x
  2. Step 2: Convert to fraction form
    663,957,436.80/996,219,590.40 = 318,733,363.20/x
  3. Step 3: Cross multiply
    663,957,436.80x = 996,219,590.40 × 318,733,363.20
  4. Step 4: Simplify right side
    663,957,436.80x = 317,528,420,533,918,400
  5. Step 5: Solve for x
    x = 317,528,420,533,918,400/663,957,436.80
  6. Step 6: Final answer
    x = 478,236,108.12

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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.