Home / 129,555,551.66-178,786,669.75-70,818,449.45

Finding the Fourth Proportional to 129,555,551.66, 178,786,669.75 and 70,818,449.45

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Solution

The fourth proportional to 129,555,551.66, 178,786,669.75 and 70,818,449.45 is: 97,729,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,555,551.66 : 178,786,669.75 = 70,818,449.45 : x
  2. Step 2: Convert to fraction form
    129,555,551.66/178,786,669.75 = 70,818,449.45/x
  3. Step 3: Cross multiply
    129,555,551.66x = 178,786,669.75 × 70,818,449.45
  4. Step 4: Simplify right side
    129,555,551.66x = 12,661,394,733,223,162
  5. Step 5: Solve for x
    x = 12,661,394,733,223,162/129,555,551.66
  6. Step 6: Final answer
    x = 97,729,464.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.