Home / 1,519,280,122.32-2,278,601,318.88-428,508,098.64

Finding the Fourth Proportional to 1,519,280,122.32, 2,278,601,318.88 and 428,508,098.64

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Solution

The fourth proportional to 1,519,280,122.32, 2,278,601,318.88 and 428,508,098.64 is: 642,672,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,280,122.32 : 2,278,601,318.88 = 428,508,098.64 : x
  2. Step 2: Convert to fraction form
    1,519,280,122.32/2,278,601,318.88 = 428,508,098.64/x
  3. Step 3: Cross multiply
    1,519,280,122.32x = 2,278,601,318.88 × 428,508,098.64
  4. Step 4: Simplify right side
    1,519,280,122.32x = 976,399,118,711,865,088
  5. Step 5: Solve for x
    x = 976,399,118,711,865,088/1,519,280,122.32
  6. Step 6: Final answer
    x = 642,672,213.22

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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.