Home / 39,975,902.06-55,166,763.30-21,641,187.56

Finding the Fourth Proportional to 39,975,902.06, 55,166,763.30 and 21,641,187.56

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Solution

The fourth proportional to 39,975,902.06, 55,166,763.30 and 21,641,187.56 is: 29,864,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975,902.06 : 55,166,763.30 = 21,641,187.56 : x
  2. Step 2: Convert to fraction form
    39,975,902.06/55,166,763.30 = 21,641,187.56/x
  3. Step 3: Cross multiply
    39,975,902.06x = 55,166,763.30 × 21,641,187.56
  4. Step 4: Simplify right side
    39,975,902.06x = 1,193,874,271,653,424.50
  5. Step 5: Solve for x
    x = 1,193,874,271,653,424.50/39,975,902.06
  6. Step 6: Final answer
    x = 29,864,848.82

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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.