Home / 115,725,286.40-173,786,995.20-81,884,134.40

Finding the Fourth Proportional to 115,725,286.40, 173,786,995.20 and 81,884,134.40

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Solution

The fourth proportional to 115,725,286.40, 173,786,995.20 and 81,884,134.40 is: 122,967,055.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,725,286.40 : 173,786,995.20 = 81,884,134.40 : x
  2. Step 2: Convert to fraction form
    115,725,286.40/173,786,995.20 = 81,884,134.40/x
  3. Step 3: Cross multiply
    115,725,286.40x = 173,786,995.20 × 81,884,134.40
  4. Step 4: Simplify right side
    115,725,286.40x = 14,230,397,671,928,954
  5. Step 5: Solve for x
    x = 14,230,397,671,928,954/115,725,286.40
  6. Step 6: Final answer
    x = 122,967,055.12

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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.