Home / 78,107,330.37-117,167,371.17-39,225,785.88

Finding the Fourth Proportional to 78,107,330.37, 117,167,371.17 and 39,225,785.88

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Solution

The fourth proportional to 78,107,330.37, 117,167,371.17 and 39,225,785.88 is: 58,841,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,107,330.37 : 117,167,371.17 = 39,225,785.88 : x
  2. Step 2: Convert to fraction form
    78,107,330.37/117,167,371.17 = 39,225,785.88/x
  3. Step 3: Cross multiply
    78,107,330.37x = 117,167,371.17 × 39,225,785.88
  4. Step 4: Simplify right side
    78,107,330.37x = 4,595,982,213,636,905
  5. Step 5: Solve for x
    x = 4,595,982,213,636,905/78,107,330.37
  6. Step 6: Final answer
    x = 58,841,880.68

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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.