Home / 479,495,096.80-661,254,137.76-318,273,947.20

Finding the Fourth Proportional to 479,495,096.80, 661,254,137.76 and 318,273,947.20

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Solution

The fourth proportional to 479,495,096.80, 661,254,137.76 and 318,273,947.20 is: 438,919,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,495,096.80 : 661,254,137.76 = 318,273,947.20 : x
  2. Step 2: Convert to fraction form
    479,495,096.80/661,254,137.76 = 318,273,947.20/x
  3. Step 3: Cross multiply
    479,495,096.80x = 661,254,137.76 × 318,273,947.20
  4. Step 4: Simplify right side
    479,495,096.80x = 210,459,964,527,207,744
  5. Step 5: Solve for x
    x = 210,459,964,527,207,744/479,495,096.80
  6. Step 6: Final answer
    x = 438,919,951.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.