Home / 1,519,280,124.57-2,278,601,322.26-428,508,100.89

Finding the Fourth Proportional to 1,519,280,124.57, 2,278,601,322.26 and 428,508,100.89

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Solution

The fourth proportional to 1,519,280,124.57, 2,278,601,322.26 and 428,508,100.89 is: 642,672,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,280,124.57 : 2,278,601,322.26 = 428,508,100.89 : x
  2. Step 2: Convert to fraction form
    1,519,280,124.57/2,278,601,322.26 = 428,508,100.89/x
  3. Step 3: Cross multiply
    1,519,280,124.57x = 2,278,601,322.26 × 428,508,100.89
  4. Step 4: Simplify right side
    1,519,280,124.57x = 976,399,125,284,932,992
  5. Step 5: Solve for x
    x = 976,399,125,284,932,992/1,519,280,124.57
  6. Step 6: Final answer
    x = 642,672,216.59

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1.5x scale

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.