Home / 1,131,859,039.05-1,699,319,565.37-781,233,365.91

Finding the Fourth Proportional to 1,131,859,039.05, 1,699,319,565.37 and 781,233,365.91

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Solution

The fourth proportional to 1,131,859,039.05, 1,699,319,565.37 and 781,233,365.91 is: 1,172,906,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,859,039.05 : 1,699,319,565.37 = 781,233,365.91 : x
  2. Step 2: Convert to fraction form
    1,131,859,039.05/1,699,319,565.37 = 781,233,365.91/x
  3. Step 3: Cross multiply
    1,131,859,039.05x = 1,699,319,565.37 × 781,233,365.91
  4. Step 4: Simplify right side
    1,131,859,039.05x = 1,327,565,143,810,723,328
  5. Step 5: Solve for x
    x = 1,327,565,143,810,723,328/1,131,859,039.05
  6. Step 6: Final answer
    x = 1,172,906,782.57

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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.