Home / 86,167,937.20-129,335,886.60-43,085,786.80

Finding the Fourth Proportional to 86,167,937.20, 129,335,886.60 and 43,085,786.80

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Solution

The fourth proportional to 86,167,937.20, 129,335,886.60 and 43,085,786.80 is: 64,670,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,167,937.20 : 129,335,886.60 = 43,085,786.80 : x
  2. Step 2: Convert to fraction form
    86,167,937.20/129,335,886.60 = 43,085,786.80/x
  3. Step 3: Cross multiply
    86,167,937.20x = 129,335,886.60 × 43,085,786.80
  4. Step 4: Simplify right side
    86,167,937.20x = 5,572,538,435,636,576
  5. Step 5: Solve for x
    x = 5,572,538,435,636,576/86,167,937.20
  6. Step 6: Final answer
    x = 64,670,672.37

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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.