Home / 781,067,961.44-1,077,802,543.92-463,473,478.70

Finding the Fourth Proportional to 781,067,961.44, 1,077,802,543.92 and 463,473,478.70

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Solution

The fourth proportional to 781,067,961.44, 1,077,802,543.92 and 463,473,478.70 is: 639,551,126.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,067,961.44 : 1,077,802,543.92 = 463,473,478.70 : x
  2. Step 2: Convert to fraction form
    781,067,961.44/1,077,802,543.92 = 463,473,478.70/x
  3. Step 3: Cross multiply
    781,067,961.44x = 1,077,802,543.92 × 463,473,478.70
  4. Step 4: Simplify right side
    781,067,961.44x = 499,532,894,382,311,936
  5. Step 5: Solve for x
    x = 499,532,894,382,311,936/781,067,961.44
  6. Step 6: Final answer
    x = 639,551,126.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.