Home / 20,739,097.80-31,108,646.70-18,219,673.80

Finding the Fourth Proportional to 20,739,097.80, 31,108,646.70 and 18,219,673.80

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Solution

The fourth proportional to 20,739,097.80, 31,108,646.70 and 18,219,673.80 is: 27,329,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,097.80 : 31,108,646.70 = 18,219,673.80 : x
  2. Step 2: Convert to fraction form
    20,739,097.80/31,108,646.70 = 18,219,673.80/x
  3. Step 3: Cross multiply
    20,739,097.80x = 31,108,646.70 × 18,219,673.80
  4. Step 4: Simplify right side
    20,739,097.80x = 566,789,395,233,446.50
  5. Step 5: Solve for x
    x = 566,789,395,233,446.50/20,739,097.80
  6. Step 6: Final answer
    x = 27,329,510.70

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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.