Home / 318,912,940.80-478,369,411.20-173,416,204.80

Finding the Fourth Proportional to 318,912,940.80, 478,369,411.20 and 173,416,204.80

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Solution

The fourth proportional to 318,912,940.80, 478,369,411.20 and 173,416,204.80 is: 260,124,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,912,940.80 : 478,369,411.20 = 173,416,204.80 : x
  2. Step 2: Convert to fraction form
    318,912,940.80/478,369,411.20 = 173,416,204.80/x
  3. Step 3: Cross multiply
    318,912,940.80x = 478,369,411.20 × 173,416,204.80
  4. Step 4: Simplify right side
    318,912,940.80x = 82,957,007,782,714,624
  5. Step 5: Solve for x
    x = 82,957,007,782,714,624/318,912,940.80
  6. Step 6: Final answer
    x = 260,124,307.20

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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.