Home / 39,378,366.18-59,067,301.41-21,191,128.38

Finding the Fourth Proportional to 39,378,366.18, 59,067,301.41 and 21,191,128.38

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Solution

The fourth proportional to 39,378,366.18, 59,067,301.41 and 21,191,128.38 is: 31,786,559.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378,366.18 : 59,067,301.41 = 21,191,128.38 : x
  2. Step 2: Convert to fraction form
    39,378,366.18/59,067,301.41 = 21,191,128.38/x
  3. Step 3: Cross multiply
    39,378,366.18x = 59,067,301.41 × 21,191,128.38
  4. Step 4: Simplify right side
    39,378,366.18x = 1,251,702,767,239,465
  5. Step 5: Solve for x
    x = 1,251,702,767,239,465/39,378,366.18
  6. Step 6: Final answer
    x = 31,786,559.19

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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.