Home / 115,405,387.40-173,108,081.10-72,407,217.80

Finding the Fourth Proportional to 115,405,387.40, 173,108,081.10 and 72,407,217.80

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Solution

The fourth proportional to 115,405,387.40, 173,108,081.10 and 72,407,217.80 is: 108,610,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,405,387.40 : 173,108,081.10 = 72,407,217.80 : x
  2. Step 2: Convert to fraction form
    115,405,387.40/173,108,081.10 = 72,407,217.80/x
  3. Step 3: Cross multiply
    115,405,387.40x = 173,108,081.10 × 72,407,217.80
  4. Step 4: Simplify right side
    115,405,387.40x = 12,534,274,531,147,762
  5. Step 5: Solve for x
    x = 12,534,274,531,147,762/115,405,387.40
  6. Step 6: Final answer
    x = 108,610,826.70

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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.