Home / 212,625,903.30-318,686,912.55-89,803,983.30

Finding the Fourth Proportional to 212,625,903.30, 318,686,912.55 and 89,803,983.30

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Solution

The fourth proportional to 212,625,903.30, 318,686,912.55 and 89,803,983.30 is: 134,599,565.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,625,903.30 : 318,686,912.55 = 89,803,983.30 : x
  2. Step 2: Convert to fraction form
    212,625,903.30/318,686,912.55 = 89,803,983.30/x
  3. Step 3: Cross multiply
    212,625,903.30x = 318,686,912.55 × 89,803,983.30
  4. Step 4: Simplify right side
    212,625,903.30x = 28,619,354,172,568,760
  5. Step 5: Solve for x
    x = 28,619,354,172,568,760/212,625,903.30
  6. Step 6: Final answer
    x = 134,599,565.38

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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.