Home / 91,669,902.12-137,502,855.72-43,120,845.86

Finding the Fourth Proportional to 91,669,902.12, 137,502,855.72 and 43,120,845.86

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Solution

The fourth proportional to 91,669,902.12, 137,502,855.72 and 43,120,845.86 is: 64,680,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,669,902.12 : 137,502,855.72 = 43,120,845.86 : x
  2. Step 2: Convert to fraction form
    91,669,902.12/137,502,855.72 = 43,120,845.86/x
  3. Step 3: Cross multiply
    91,669,902.12x = 137,502,855.72 × 43,120,845.86
  4. Step 4: Simplify right side
    91,669,902.12x = 5,929,239,446,124,425
  5. Step 5: Solve for x
    x = 5,929,239,446,124,425/91,669,902.12
  6. Step 6: Final answer
    x = 64,680,329.19

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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.