Home / 140,617,722.42-194,054,009.04-77,894,781.12

Finding the Fourth Proportional to 140,617,722.42, 194,054,009.04 and 77,894,781.12

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Solution

The fourth proportional to 140,617,722.42, 194,054,009.04 and 77,894,781.12 is: 107,495,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,617,722.42 : 194,054,009.04 = 77,894,781.12 : x
  2. Step 2: Convert to fraction form
    140,617,722.42/194,054,009.04 = 77,894,781.12/x
  3. Step 3: Cross multiply
    140,617,722.42x = 194,054,009.04 × 77,894,781.12
  4. Step 4: Simplify right side
    140,617,722.42x = 15,115,794,559,629,302
  5. Step 5: Solve for x
    x = 15,115,794,559,629,302/140,617,722.42
  6. Step 6: Final answer
    x = 107,495,657.73

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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.