Home / 115,909,780.80-173,976,645.60-70,560,148.80

Finding the Fourth Proportional to 115,909,780.80, 173,976,645.60 and 70,560,148.80

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Solution

The fourth proportional to 115,909,780.80, 173,976,645.60 and 70,560,148.80 is: 105,908,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909,780.80 : 173,976,645.60 = 70,560,148.80 : x
  2. Step 2: Convert to fraction form
    115,909,780.80/173,976,645.60 = 70,560,148.80/x
  3. Step 3: Cross multiply
    115,909,780.80x = 173,976,645.60 × 70,560,148.80
  4. Step 4: Simplify right side
    115,909,780.80x = 12,275,818,001,260,864
  5. Step 5: Solve for x
    x = 12,275,818,001,260,864/115,909,780.80
  6. Step 6: Final answer
    x = 105,908,387.68

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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.