Home / 140,652,005.09-194,099,767.01-78,772,343.66

Finding the Fourth Proportional to 140,652,005.09, 194,099,767.01 and 78,772,343.66

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Solution

The fourth proportional to 140,652,005.09, 194,099,767.01 and 78,772,343.66 is: 108,705,834.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,652,005.09 : 194,099,767.01 = 78,772,343.66 : x
  2. Step 2: Convert to fraction form
    140,652,005.09/194,099,767.01 = 78,772,343.66/x
  3. Step 3: Cross multiply
    140,652,005.09x = 194,099,767.01 × 78,772,343.66
  4. Step 4: Simplify right side
    140,652,005.09x = 15,289,693,549,873,290
  5. Step 5: Solve for x
    x = 15,289,693,549,873,290/140,652,005.09
  6. Step 6: Final answer
    x = 108,705,834.24

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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.