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Finding the Fourth Proportional to 318,853,204.70, 477,978,875.85 and 173,071,867.10

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Solution

The fourth proportional to 318,853,204.70, 477,978,875.85 and 173,071,867.10 is: 259,444,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,853,204.70 : 477,978,875.85 = 173,071,867.10 : x
  2. Step 2: Convert to fraction form
    318,853,204.70/477,978,875.85 = 173,071,867.10/x
  3. Step 3: Cross multiply
    318,853,204.70x = 477,978,875.85 × 173,071,867.10
  4. Step 4: Simplify right side
    318,853,204.70x = 82,724,696,477,718,608
  5. Step 5: Solve for x
    x = 82,724,696,477,718,608/318,853,204.70
  6. Step 6: Final answer
    x = 259,444,456.75

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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.