Home / 318,967,000.30-478,450,500.45-76,629,904.30

Finding the Fourth Proportional to 318,967,000.30, 478,450,500.45 and 76,629,904.30

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Solution

The fourth proportional to 318,967,000.30, 478,450,500.45 and 76,629,904.30 is: 114,944,856.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,967,000.30 : 478,450,500.45 = 76,629,904.30 : x
  2. Step 2: Convert to fraction form
    318,967,000.30/478,450,500.45 = 76,629,904.30/x
  3. Step 3: Cross multiply
    318,967,000.30x = 478,450,500.45 × 76,629,904.30
  4. Step 4: Simplify right side
    318,967,000.30x = 36,663,616,061,770,608
  5. Step 5: Solve for x
    x = 36,663,616,061,770,608/318,967,000.30
  6. Step 6: Final answer
    x = 114,944,856.45

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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.