Home / 129,247,334.70-193,965,480.45-90,983,582.70

Finding the Fourth Proportional to 129,247,334.70, 193,965,480.45 and 90,983,582.70

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Solution

The fourth proportional to 129,247,334.70, 193,965,480.45 and 90,983,582.70 is: 136,541,882.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,247,334.70 : 193,965,480.45 = 90,983,582.70 : x
  2. Step 2: Convert to fraction form
    129,247,334.70/193,965,480.45 = 90,983,582.70/x
  3. Step 3: Cross multiply
    129,247,334.70x = 193,965,480.45 × 90,983,582.70
  4. Step 4: Simplify right side
    129,247,334.70x = 17,647,674,331,467,808
  5. Step 5: Solve for x
    x = 17,647,674,331,467,808/129,247,334.70
  6. Step 6: Final answer
    x = 136,541,882.06

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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.