Home / 679,951,646.40-1,017,576,007.20-407,517,931.20

Finding the Fourth Proportional to 679,951,646.40, 1,017,576,007.20 and 407,517,931.20

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Solution

The fourth proportional to 679,951,646.40, 1,017,576,007.20 and 407,517,931.20 is: 609,867,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,951,646.40 : 1,017,576,007.20 = 407,517,931.20 : x
  2. Step 2: Convert to fraction form
    679,951,646.40/1,017,576,007.20 = 407,517,931.20/x
  3. Step 3: Cross multiply
    679,951,646.40x = 1,017,576,007.20 × 407,517,931.20
  4. Step 4: Simplify right side
    679,951,646.40x = 414,680,469,292,900,288
  5. Step 5: Solve for x
    x = 414,680,469,292,900,288/679,951,646.40
  6. Step 6: Final answer
    x = 609,867,586.16

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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.