Home / 67,266,948.64-100,890,842.23-21,202,831.18

Finding the Fourth Proportional to 67,266,948.64, 100,890,842.23 and 21,202,831.18

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Solution

The fourth proportional to 67,266,948.64, 100,890,842.23 and 21,202,831.18 is: 31,801,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,266,948.64 : 100,890,842.23 = 21,202,831.18 : x
  2. Step 2: Convert to fraction form
    67,266,948.64/100,890,842.23 = 21,202,831.18/x
  3. Step 3: Cross multiply
    67,266,948.64x = 100,890,842.23 × 21,202,831.18
  4. Step 4: Simplify right side
    67,266,948.64x = 2,139,171,495,410,704.75
  5. Step 5: Solve for x
    x = 2,139,171,495,410,704.75/67,266,948.64
  6. Step 6: Final answer
    x = 31,801,226.88

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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.