Home / 1,131,859,038.05-1,699,319,563.87-781,233,364.91

Finding the Fourth Proportional to 1,131,859,038.05, 1,699,319,563.87 and 781,233,364.91

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Solution

The fourth proportional to 1,131,859,038.05, 1,699,319,563.87 and 781,233,364.91 is: 1,172,906,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,859,038.05 : 1,699,319,563.87 = 781,233,364.91 : x
  2. Step 2: Convert to fraction form
    1,131,859,038.05/1,699,319,563.87 = 781,233,364.91/x
  3. Step 3: Cross multiply
    1,131,859,038.05x = 1,699,319,563.87 × 781,233,364.91
  4. Step 4: Simplify right side
    1,131,859,038.05x = 1,327,565,140,941,408,000
  5. Step 5: Solve for x
    x = 1,327,565,140,941,408,000/1,131,859,038.05
  6. Step 6: Final answer
    x = 1,172,906,781.07

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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.