Home / 210,015,131.80-314,928,219.30-80,579,723.80

Finding the Fourth Proportional to 210,015,131.80, 314,928,219.30 and 80,579,723.80

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Solution

The fourth proportional to 210,015,131.80, 314,928,219.30 and 80,579,723.80 is: 120,833,335.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,131.80 : 314,928,219.30 = 80,579,723.80 : x
  2. Step 2: Convert to fraction form
    210,015,131.80/314,928,219.30 = 80,579,723.80/x
  3. Step 3: Cross multiply
    210,015,131.80x = 314,928,219.30 × 80,579,723.80
  4. Step 4: Simplify right side
    210,015,131.80x = 25,376,828,928,019,828
  5. Step 5: Solve for x
    x = 25,376,828,928,019,828/210,015,131.80
  6. Step 6: Final answer
    x = 120,833,335.72

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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.