Home / 21,842,089.52-30,142,723.08-11,919,611.57

Finding the Fourth Proportional to 21,842,089.52, 30,142,723.08 and 11,919,611.57

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Solution

The fourth proportional to 21,842,089.52, 30,142,723.08 and 11,919,611.57 is: 16,449,412.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,842,089.52 : 30,142,723.08 = 11,919,611.57 : x
  2. Step 2: Convert to fraction form
    21,842,089.52/30,142,723.08 = 11,919,611.57/x
  3. Step 3: Cross multiply
    21,842,089.52x = 30,142,723.08 × 11,919,611.57
  4. Step 4: Simplify right side
    21,842,089.52x = 359,289,550,624,960.38
  5. Step 5: Solve for x
    x = 359,289,550,624,960.38/21,842,089.52
  6. Step 6: Final answer
    x = 16,449,412.97

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1.5x scale

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.