Home / 15,519,609.84-21,417,067.80-8,997,020.88

Finding the Fourth Proportional to 15,519,609.84, 21,417,067.80 and 8,997,020.88

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Solution

The fourth proportional to 15,519,609.84, 21,417,067.80 and 8,997,020.88 is: 12,415,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519,609.84 : 21,417,067.80 = 8,997,020.88 : x
  2. Step 2: Convert to fraction form
    15,519,609.84/21,417,067.80 = 8,997,020.88/x
  3. Step 3: Cross multiply
    15,519,609.84x = 21,417,067.80 × 8,997,020.88
  4. Step 4: Simplify right side
    15,519,609.84x = 192,689,806,184,975.69
  5. Step 5: Solve for x
    x = 192,689,806,184,975.69/15,519,609.84
  6. Step 6: Final answer
    x = 12,415,892.42

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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.