Home / 210,015,615.80-314,928,945.30-80,580,207.80

Finding the Fourth Proportional to 210,015,615.80, 314,928,945.30 and 80,580,207.80

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Solution

The fourth proportional to 210,015,615.80, 314,928,945.30 and 80,580,207.80 is: 120,834,061.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,615.80 : 314,928,945.30 = 80,580,207.80 : x
  2. Step 2: Convert to fraction form
    210,015,615.80/314,928,945.30 = 80,580,207.80/x
  3. Step 3: Cross multiply
    210,015,615.80x = 314,928,945.30 × 80,580,207.80
  4. Step 4: Simplify right side
    210,015,615.80x = 25,377,039,854,508,832
  5. Step 5: Solve for x
    x = 25,377,039,854,508,832/210,015,615.80
  6. Step 6: Final answer
    x = 120,834,061.59

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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.