Home / 39,071,930.85-53,917,417.80-21,667,902.39

Finding the Fourth Proportional to 39,071,930.85, 53,917,417.80 and 21,667,902.39

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Solution

The fourth proportional to 39,071,930.85, 53,917,417.80 and 21,667,902.39 is: 29,900,681.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071,930.85 : 53,917,417.80 = 21,667,902.39 : x
  2. Step 2: Convert to fraction form
    39,071,930.85/53,917,417.80 = 21,667,902.39/x
  3. Step 3: Cross multiply
    39,071,930.85x = 53,917,417.80 × 21,667,902.39
  4. Step 4: Simplify right side
    39,071,930.85x = 1,168,277,346,011,248.50
  5. Step 5: Solve for x
    x = 1,168,277,346,011,248.50/39,071,930.85
  6. Step 6: Final answer
    x = 29,900,681.14

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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.