Home / 97,471,243.40-146,206,865.10-78,339,367.40

Finding the Fourth Proportional to 97,471,243.40, 146,206,865.10 and 78,339,367.40

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Solution

The fourth proportional to 97,471,243.40, 146,206,865.10 and 78,339,367.40 is: 117,509,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,471,243.40 : 146,206,865.10 = 78,339,367.40 : x
  2. Step 2: Convert to fraction form
    97,471,243.40/146,206,865.10 = 78,339,367.40/x
  3. Step 3: Cross multiply
    97,471,243.40x = 146,206,865.10 × 78,339,367.40
  4. Step 4: Simplify right side
    97,471,243.40x = 11,453,753,321,471,138
  5. Step 5: Solve for x
    x = 11,453,753,321,471,138/97,471,243.40
  6. Step 6: Final answer
    x = 117,509,051.10

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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.