Home / 20,769,727.25-28,663,949.45-11,479,111.35

Finding the Fourth Proportional to 20,769,727.25, 28,663,949.45 and 11,479,111.35

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Solution

The fourth proportional to 20,769,727.25, 28,663,949.45 and 11,479,111.35 is: 15,842,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,727.25 : 28,663,949.45 = 11,479,111.35 : x
  2. Step 2: Convert to fraction form
    20,769,727.25/28,663,949.45 = 11,479,111.35/x
  3. Step 3: Cross multiply
    20,769,727.25x = 28,663,949.45 × 11,479,111.35
  4. Step 4: Simplify right side
    20,769,727.25x = 329,036,667,409,925.69
  5. Step 5: Solve for x
    x = 329,036,667,409,925.69/20,769,727.25
  6. Step 6: Final answer
    x = 15,842,127.51

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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.