Home / 39,342,021.72-54,292,042.27-21,700,528.64

Finding the Fourth Proportional to 39,342,021.72, 54,292,042.27 and 21,700,528.64

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Solution

The fourth proportional to 39,342,021.72, 54,292,042.27 and 21,700,528.64 is: 29,946,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342,021.72 : 54,292,042.27 = 21,700,528.64 : x
  2. Step 2: Convert to fraction form
    39,342,021.72/54,292,042.27 = 21,700,528.64/x
  3. Step 3: Cross multiply
    39,342,021.72x = 54,292,042.27 × 21,700,528.64
  4. Step 4: Simplify right side
    39,342,021.72x = 1,178,166,018,204,225.75
  5. Step 5: Solve for x
    x = 1,178,166,018,204,225.75/39,342,021.72
  6. Step 6: Final answer
    x = 29,946,758.37

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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.