Home / 86,305,126.56-129,458,811.69-28,797,397.71

Finding the Fourth Proportional to 86,305,126.56, 129,458,811.69 and 28,797,397.71

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Solution

The fourth proportional to 86,305,126.56, 129,458,811.69 and 28,797,397.71 is: 43,196,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,305,126.56 : 129,458,811.69 = 28,797,397.71 : x
  2. Step 2: Convert to fraction form
    86,305,126.56/129,458,811.69 = 28,797,397.71/x
  3. Step 3: Cross multiply
    86,305,126.56x = 129,458,811.69 × 28,797,397.71
  4. Step 4: Simplify right side
    86,305,126.56x = 3,728,076,887,300,927.50
  5. Step 5: Solve for x
    x = 3,728,076,887,300,927.50/86,305,126.56
  6. Step 6: Final answer
    x = 43,196,470.89

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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.