Home / 79,663,246.20-119,494,869.30-78,529,505.40

Finding the Fourth Proportional to 79,663,246.20, 119,494,869.30 and 78,529,505.40

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Solution

The fourth proportional to 79,663,246.20, 119,494,869.30 and 78,529,505.40 is: 117,794,258.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,663,246.20 : 119,494,869.30 = 78,529,505.40 : x
  2. Step 2: Convert to fraction form
    79,663,246.20/119,494,869.30 = 78,529,505.40/x
  3. Step 3: Cross multiply
    79,663,246.20x = 119,494,869.30 × 78,529,505.40
  4. Step 4: Simplify right side
    79,663,246.20x = 9,383,872,983,966,644
  5. Step 5: Solve for x
    x = 9,383,872,983,966,644/79,663,246.20
  6. Step 6: Final answer
    x = 117,794,258.10

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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.