Home / 861,087,401.76-1,290,581,765.01-446,335,566.44

Finding the Fourth Proportional to 861,087,401.76, 1,290,581,765.01 and 446,335,566.44

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Solution

The fourth proportional to 861,087,401.76, 1,290,581,765.01 and 446,335,566.44 is: 668,959,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,087,401.76 : 1,290,581,765.01 = 446,335,566.44 : x
  2. Step 2: Convert to fraction form
    861,087,401.76/1,290,581,765.01 = 446,335,566.44/x
  3. Step 3: Cross multiply
    861,087,401.76x = 1,290,581,765.01 × 446,335,566.44
  4. Step 4: Simplify right side
    861,087,401.76x = 576,032,543,116,420,416
  5. Step 5: Solve for x
    x = 576,032,543,116,420,416/861,087,401.76
  6. Step 6: Final answer
    x = 668,959,436.56

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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.