Home / 121,747,402.32-168,006,912.40-65,991,625.62

Finding the Fourth Proportional to 121,747,402.32, 168,006,912.40 and 65,991,625.62

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Solution

The fourth proportional to 121,747,402.32, 168,006,912.40 and 65,991,625.62 is: 91,066,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,747,402.32 : 168,006,912.40 = 65,991,625.62 : x
  2. Step 2: Convert to fraction form
    121,747,402.32/168,006,912.40 = 65,991,625.62/x
  3. Step 3: Cross multiply
    121,747,402.32x = 168,006,912.40 × 65,991,625.62
  4. Step 4: Simplify right side
    121,747,402.32x = 11,087,049,264,672,936
  5. Step 5: Solve for x
    x = 11,087,049,264,672,936/121,747,402.32
  6. Step 6: Final answer
    x = 91,066,002.67

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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.