Home / 663,360,583.28-991,155,000.27-640,161,439.43

Finding the Fourth Proportional to 663,360,583.28, 991,155,000.27 and 640,161,439.43

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Solution

The fourth proportional to 663,360,583.28, 991,155,000.27 and 640,161,439.43 is: 956,492,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,360,583.28 : 991,155,000.27 = 640,161,439.43 : x
  2. Step 2: Convert to fraction form
    663,360,583.28/991,155,000.27 = 640,161,439.43/x
  3. Step 3: Cross multiply
    663,360,583.28x = 991,155,000.27 × 640,161,439.43
  4. Step 4: Simplify right side
    663,360,583.28x = 634,499,211,668,530,048
  5. Step 5: Solve for x
    x = 634,499,211,668,530,048/663,360,583.28
  6. Step 6: Final answer
    x = 956,492,181.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.