Home / 771,672,919.20-1,158,853,071.60-408,875,863.20

Finding the Fourth Proportional to 771,672,919.20, 1,158,853,071.60 and 408,875,863.20

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Solution

The fourth proportional to 771,672,919.20, 1,158,853,071.60 and 408,875,863.20 is: 614,025,759.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,672,919.20 : 1,158,853,071.60 = 408,875,863.20 : x
  2. Step 2: Convert to fraction form
    771,672,919.20/1,158,853,071.60 = 408,875,863.20/x
  3. Step 3: Cross multiply
    771,672,919.20x = 1,158,853,071.60 × 408,875,863.20
  4. Step 4: Simplify right side
    771,672,919.20x = 473,827,049,972,421,376
  5. Step 5: Solve for x
    x = 473,827,049,972,421,376/771,672,919.20
  6. Step 6: Final answer
    x = 614,025,759.08

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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.