Home / 122,267,364.34-168,971,051.89-100,206,067.44

Finding the Fourth Proportional to 122,267,364.34, 168,971,051.89 and 100,206,067.44

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Solution

The fourth proportional to 122,267,364.34, 168,971,051.89 and 100,206,067.44 is: 138,482,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,267,364.34 : 168,971,051.89 = 100,206,067.44 : x
  2. Step 2: Convert to fraction form
    122,267,364.34/168,971,051.89 = 100,206,067.44/x
  3. Step 3: Cross multiply
    122,267,364.34x = 168,971,051.89 × 100,206,067.44
  4. Step 4: Simplify right side
    122,267,364.34x = 16,931,924,621,097,078
  5. Step 5: Solve for x
    x = 16,931,924,621,097,078/122,267,364.34
  6. Step 6: Final answer
    x = 138,482,780.85

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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.