Home / 212,446,958.76-318,655,807.11-130,578,472.71

Finding the Fourth Proportional to 212,446,958.76, 318,655,807.11 and 130,578,472.71

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Solution

The fourth proportional to 212,446,958.76, 318,655,807.11 and 130,578,472.71 is: 195,858,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,446,958.76 : 318,655,807.11 = 130,578,472.71 : x
  2. Step 2: Convert to fraction form
    212,446,958.76/318,655,807.11 = 130,578,472.71/x
  3. Step 3: Cross multiply
    212,446,958.76x = 318,655,807.11 × 130,578,472.71
  4. Step 4: Simplify right side
    212,446,958.76x = 41,609,588,612,596,160
  5. Step 5: Solve for x
    x = 41,609,588,612,596,160/212,446,958.76
  6. Step 6: Final answer
    x = 195,858,716.24

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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.