Home / 39,139,638.81-54,011,221.79-21,737,105.03

Finding the Fourth Proportional to 39,139,638.81, 54,011,221.79 and 21,737,105.03

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Solution

The fourth proportional to 39,139,638.81, 54,011,221.79 and 21,737,105.03 is: 29,996,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139,638.81 : 54,011,221.79 = 21,737,105.03 : x
  2. Step 2: Convert to fraction form
    39,139,638.81/54,011,221.79 = 21,737,105.03/x
  3. Step 3: Cross multiply
    39,139,638.81x = 54,011,221.79 × 21,737,105.03
  4. Step 4: Simplify right side
    39,139,638.81x = 1,174,047,600,874,197
  5. Step 5: Solve for x
    x = 1,174,047,600,874,197/39,139,638.81
  6. Step 6: Final answer
    x = 29,996,383.12

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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.