Home / 1,689,491,909.10-2,331,503,856.51-936,858,106.62

Finding the Fourth Proportional to 1,689,491,909.10, 2,331,503,856.51 and 936,858,106.62

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Solution

The fourth proportional to 1,689,491,909.10, 2,331,503,856.51 and 936,858,106.62 is: 1,292,866,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,491,909.10 : 2,331,503,856.51 = 936,858,106.62 : x
  2. Step 2: Convert to fraction form
    1,689,491,909.10/2,331,503,856.51 = 936,858,106.62/x
  3. Step 3: Cross multiply
    1,689,491,909.10x = 2,331,503,856.51 × 936,858,106.62
  4. Step 4: Simplify right side
    1,689,491,909.10x = 2,184,288,288,587,186,944
  5. Step 5: Solve for x
    x = 2,184,288,288,587,186,944/1,689,491,909.10
  6. Step 6: Final answer
    x = 1,292,866,971.91

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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.