Home / 210,015,431.80-314,928,669.30-80,580,023.80

Finding the Fourth Proportional to 210,015,431.80, 314,928,669.30 and 80,580,023.80

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Solution

The fourth proportional to 210,015,431.80, 314,928,669.30 and 80,580,023.80 is: 120,833,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,015,431.80 : 314,928,669.30 = 80,580,023.80 : x
  2. Step 2: Convert to fraction form
    210,015,431.80/314,928,669.30 = 80,580,023.80/x
  3. Step 3: Cross multiply
    210,015,431.80x = 314,928,669.30 × 80,580,023.80
  4. Step 4: Simplify right side
    210,015,431.80x = 25,376,959,667,496,328
  5. Step 5: Solve for x
    x = 25,376,959,667,496,328/210,015,431.80
  6. Step 6: Final answer
    x = 120,833,785.64

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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.