Home / 39,071,931.09-53,917,418.14-21,667,902.64

Finding the Fourth Proportional to 39,071,931.09, 53,917,418.14 and 21,667,902.64

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Solution

The fourth proportional to 39,071,931.09, 53,917,418.14 and 21,667,902.64 is: 29,900,681.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071,931.09 : 53,917,418.14 = 21,667,902.64 : x
  2. Step 2: Convert to fraction form
    39,071,931.09/53,917,418.14 = 21,667,902.64/x
  3. Step 3: Cross multiply
    39,071,931.09x = 53,917,418.14 × 21,667,902.64
  4. Step 4: Simplify right side
    39,071,931.09x = 1,168,277,366,857,690
  5. Step 5: Solve for x
    x = 1,168,277,366,857,690/39,071,931.09
  6. Step 6: Final answer
    x = 29,900,681.49

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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.