Home / 217,618,512.80-326,427,769.20-74,011,344.80

Finding the Fourth Proportional to 217,618,512.80, 326,427,769.20 and 74,011,344.80

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Solution

The fourth proportional to 217,618,512.80, 326,427,769.20 and 74,011,344.80 is: 111,017,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,618,512.80 : 326,427,769.20 = 74,011,344.80 : x
  2. Step 2: Convert to fraction form
    217,618,512.80/326,427,769.20 = 74,011,344.80/x
  3. Step 3: Cross multiply
    217,618,512.80x = 326,427,769.20 × 74,011,344.80
  4. Step 4: Simplify right side
    217,618,512.80x = 24,159,358,178,556,020
  5. Step 5: Solve for x
    x = 24,159,358,178,556,020/217,618,512.80
  6. Step 6: Final answer
    x = 111,017,017.20

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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.