Home / 23,123,939.40-31,908,708.90-12,808,735.56

Finding the Fourth Proportional to 23,123,939.40, 31,908,708.90 and 12,808,735.56

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Solution

The fourth proportional to 23,123,939.40, 31,908,708.90 and 12,808,735.56 is: 17,674,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,123,939.40 : 31,908,708.90 = 12,808,735.56 : x
  2. Step 2: Convert to fraction form
    23,123,939.40/31,908,708.90 = 12,808,735.56/x
  3. Step 3: Cross multiply
    23,123,939.40x = 31,908,708.90 × 12,808,735.56
  4. Step 4: Simplify right side
    23,123,939.40x = 408,710,214,361,118.50
  5. Step 5: Solve for x
    x = 408,710,214,361,118.50/23,123,939.40
  6. Step 6: Final answer
    x = 17,674,765.85

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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.