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Finding the Fourth Proportional to 18,498,697.20, 27,748,045.80 and 17,616,898.80

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Solution

The fourth proportional to 18,498,697.20, 27,748,045.80 and 17,616,898.80 is: 26,425,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498,697.20 : 27,748,045.80 = 17,616,898.80 : x
  2. Step 2: Convert to fraction form
    18,498,697.20/27,748,045.80 = 17,616,898.80/x
  3. Step 3: Cross multiply
    18,498,697.20x = 27,748,045.80 × 17,616,898.80
  4. Step 4: Simplify right side
    18,498,697.20x = 488,834,514,756,365.06
  5. Step 5: Solve for x
    x = 488,834,514,756,365.06/18,498,697.20
  6. Step 6: Final answer
    x = 26,425,348.20

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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.