Home / 39,189,198.41-54,081,488.12-21,549,031.37

Finding the Fourth Proportional to 39,189,198.41, 54,081,488.12 and 21,549,031.37

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Solution

The fourth proportional to 39,189,198.41, 54,081,488.12 and 21,549,031.37 is: 29,737,880.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,189,198.41 : 54,081,488.12 = 21,549,031.37 : x
  2. Step 2: Convert to fraction form
    39,189,198.41/54,081,488.12 = 21,549,031.37/x
  3. Step 3: Cross multiply
    39,189,198.41x = 54,081,488.12 × 21,549,031.37
  4. Step 4: Simplify right side
    39,189,198.41x = 1,165,403,683,656,009.75
  5. Step 5: Solve for x
    x = 1,165,403,683,656,009.75/39,189,198.41
  6. Step 6: Final answer
    x = 29,737,880.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.