Home / 129,228,915.56-178,337,041.60-70,491,841.88

Finding the Fourth Proportional to 129,228,915.56, 178,337,041.60 and 70,491,841.88

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Solution

The fourth proportional to 129,228,915.56, 178,337,041.60 and 70,491,841.88 is: 97,279,362.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,228,915.56 : 178,337,041.60 = 70,491,841.88 : x
  2. Step 2: Convert to fraction form
    129,228,915.56/178,337,041.60 = 70,491,841.88/x
  3. Step 3: Cross multiply
    129,228,915.56x = 178,337,041.60 × 70,491,841.88
  4. Step 4: Simplify right side
    129,228,915.56x = 12,571,306,537,814,180
  5. Step 5: Solve for x
    x = 12,571,306,537,814,180/129,228,915.56
  6. Step 6: Final answer
    x = 97,279,362.62

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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.