Home / 318,924,400.80-478,386,601.20-173,427,664.80

Finding the Fourth Proportional to 318,924,400.80, 478,386,601.20 and 173,427,664.80

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Solution

The fourth proportional to 318,924,400.80, 478,386,601.20 and 173,427,664.80 is: 260,141,497.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,924,400.80 : 478,386,601.20 = 173,427,664.80 : x
  2. Step 2: Convert to fraction form
    318,924,400.80/478,386,601.20 = 173,427,664.80/x
  3. Step 3: Cross multiply
    318,924,400.80x = 478,386,601.20 × 173,427,664.80
  4. Step 4: Simplify right side
    318,924,400.80x = 82,965,471,117,724,880
  5. Step 5: Solve for x
    x = 82,965,471,117,724,880/318,924,400.80
  6. Step 6: Final answer
    x = 260,141,497.20

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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.