Home / 309,186,172.26-426,679,774.26-168,057,724.67

Finding the Fourth Proportional to 309,186,172.26, 426,679,774.26 and 168,057,724.67

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Solution

The fourth proportional to 309,186,172.26, 426,679,774.26 and 168,057,724.67 is: 231,921,212.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,186,172.26 : 426,679,774.26 = 168,057,724.67 : x
  2. Step 2: Convert to fraction form
    309,186,172.26/426,679,774.26 = 168,057,724.67/x
  3. Step 3: Cross multiply
    309,186,172.26x = 426,679,774.26 × 168,057,724.67
  4. Step 4: Simplify right side
    309,186,172.26x = 71,706,832,022,711,432
  5. Step 5: Solve for x
    x = 71,706,832,022,711,432/309,186,172.26
  6. Step 6: Final answer
    x = 231,921,212.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.