Home / 87,227,321.40-130,589,039.70-53,215,097.40

Finding the Fourth Proportional to 87,227,321.40, 130,589,039.70 and 53,215,097.40

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Solution

The fourth proportional to 87,227,321.40, 130,589,039.70 and 53,215,097.40 is: 79,668,942.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,227,321.40 : 130,589,039.70 = 53,215,097.40 : x
  2. Step 2: Convert to fraction form
    87,227,321.40/130,589,039.70 = 53,215,097.40/x
  3. Step 3: Cross multiply
    87,227,321.40x = 130,589,039.70 × 53,215,097.40
  4. Step 4: Simplify right side
    87,227,321.40x = 6,949,308,467,007,967
  5. Step 5: Solve for x
    x = 6,949,308,467,007,967/87,227,321.40
  6. Step 6: Final answer
    x = 79,668,942.66

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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.