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Finding the Fourth Proportional to 21,887,798.40, 32,784,458.40 and 18,108,662.40

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Solution

The fourth proportional to 21,887,798.40, 32,784,458.40 and 18,108,662.40 is: 27,123,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887,798.40 : 32,784,458.40 = 18,108,662.40 : x
  2. Step 2: Convert to fraction form
    21,887,798.40/32,784,458.40 = 18,108,662.40/x
  3. Step 3: Cross multiply
    21,887,798.40x = 32,784,458.40 × 18,108,662.40
  4. Step 4: Simplify right side
    21,887,798.40x = 593,682,689,132,444.12
  5. Step 5: Solve for x
    x = 593,682,689,132,444.12/21,887,798.40
  6. Step 6: Final answer
    x = 27,123,910.70

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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.