Home / 86,167,915.20-129,335,853.60-43,085,764.80

Finding the Fourth Proportional to 86,167,915.20, 129,335,853.60 and 43,085,764.80

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Solution

The fourth proportional to 86,167,915.20, 129,335,853.60 and 43,085,764.80 is: 64,670,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,167,915.20 : 129,335,853.60 = 43,085,764.80 : x
  2. Step 2: Convert to fraction form
    86,167,915.20/129,335,853.60 = 43,085,764.80/x
  3. Step 3: Cross multiply
    86,167,915.20x = 129,335,853.60 × 43,085,764.80
  4. Step 4: Simplify right side
    86,167,915.20x = 5,572,534,168,416,833
  5. Step 5: Solve for x
    x = 5,572,534,168,416,833/86,167,915.20
  6. Step 6: Final answer
    x = 64,670,639.36

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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.