Home / 289,740,998.28-434,614,187.68-82,479,401.68

Finding the Fourth Proportional to 289,740,998.28, 434,614,187.68 and 82,479,401.68

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Solution

The fourth proportional to 289,740,998.28, 434,614,187.68 and 82,479,401.68 is: 123,719,868.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,740,998.28 : 434,614,187.68 = 82,479,401.68 : x
  2. Step 2: Convert to fraction form
    289,740,998.28/434,614,187.68 = 82,479,401.68/x
  3. Step 3: Cross multiply
    289,740,998.28x = 434,614,187.68 × 82,479,401.68
  4. Step 4: Simplify right side
    289,740,998.28x = 35,846,718,160,502,188
  5. Step 5: Solve for x
    x = 35,846,718,160,502,188/289,740,998.28
  6. Step 6: Final answer
    x = 123,719,868.34

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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.