Home / 861,650,072.70-1,290,561,921.45-708,595,064.70

Finding the Fourth Proportional to 861,650,072.70, 1,290,561,921.45 and 708,595,064.70

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Solution

The fourth proportional to 861,650,072.70, 1,290,561,921.45 and 708,595,064.70 is: 1,061,319,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,650,072.70 : 1,290,561,921.45 = 708,595,064.70 : x
  2. Step 2: Convert to fraction form
    861,650,072.70/1,290,561,921.45 = 708,595,064.70/x
  3. Step 3: Cross multiply
    861,650,072.70x = 1,290,561,921.45 × 708,595,064.70
  4. Step 4: Simplify right side
    861,650,072.70x = 914,485,808,229,219,200
  5. Step 5: Solve for x
    x = 914,485,808,229,219,200/861,650,072.70
  6. Step 6: Final answer
    x = 1,061,319,249.20

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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.