Home / 318,816,081.20-478,224,121.80-88,820,663.60

Finding the Fourth Proportional to 318,816,081.20, 478,224,121.80 and 88,820,663.60

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Solution

The fourth proportional to 318,816,081.20, 478,224,121.80 and 88,820,663.60 is: 133,230,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,816,081.20 : 478,224,121.80 = 88,820,663.60 : x
  2. Step 2: Convert to fraction form
    318,816,081.20/478,224,121.80 = 88,820,663.60/x
  3. Step 3: Cross multiply
    318,816,081.20x = 478,224,121.80 × 88,820,663.60
  4. Step 4: Simplify right side
    318,816,081.20x = 42,476,183,847,803,224
  5. Step 5: Solve for x
    x = 42,476,183,847,803,224/318,816,081.20
  6. Step 6: Final answer
    x = 133,230,995.40

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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.