Home / 78,379,687.40-117,503,765.18-34,653,386.20

Finding the Fourth Proportional to 78,379,687.40, 117,503,765.18 and 34,653,386.20

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Solution

The fourth proportional to 78,379,687.40, 117,503,765.18 and 34,653,386.20 is: 51,951,002.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,379,687.40 : 117,503,765.18 = 34,653,386.20 : x
  2. Step 2: Convert to fraction form
    78,379,687.40/117,503,765.18 = 34,653,386.20/x
  3. Step 3: Cross multiply
    78,379,687.40x = 117,503,765.18 × 34,653,386.20
  4. Step 4: Simplify right side
    78,379,687.40x = 4,071,903,354,736,653
  5. Step 5: Solve for x
    x = 4,071,903,354,736,653/78,379,687.40
  6. Step 6: Final answer
    x = 51,951,002.74

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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.