Home / 615,237,415.20-923,281,275.60-442,861,574.40

Finding the Fourth Proportional to 615,237,415.20, 923,281,275.60 and 442,861,574.40

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Solution

The fourth proportional to 615,237,415.20, 923,281,275.60 and 442,861,574.40 is: 664,598,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,237,415.20 : 923,281,275.60 = 442,861,574.40 : x
  2. Step 2: Convert to fraction form
    615,237,415.20/923,281,275.60 = 442,861,574.40/x
  3. Step 3: Cross multiply
    615,237,415.20x = 923,281,275.60 × 442,861,574.40
  4. Step 4: Simplify right side
    615,237,415.20x = 408,885,799,326,256,320
  5. Step 5: Solve for x
    x = 408,885,799,326,256,320/615,237,415.20
  6. Step 6: Final answer
    x = 664,598,396.04

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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.