Home / 129,492,309.40-194,207,360.10-74,786,594.20

Finding the Fourth Proportional to 129,492,309.40, 194,207,360.10 and 74,786,594.20

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Solution

The fourth proportional to 129,492,309.40, 194,207,360.10 and 74,786,594.20 is: 112,161,927.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,492,309.40 : 194,207,360.10 = 74,786,594.20 : x
  2. Step 2: Convert to fraction form
    129,492,309.40/194,207,360.10 = 74,786,594.20/x
  3. Step 3: Cross multiply
    129,492,309.40x = 194,207,360.10 × 74,786,594.20
  4. Step 4: Simplify right side
    129,492,309.40x = 14,524,107,030,451,972
  5. Step 5: Solve for x
    x = 14,524,107,030,451,972/129,492,309.40
  6. Step 6: Final answer
    x = 112,161,927.59

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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.