Home / 18,825,274.51-28,249,855.22-8,042,656.57

Finding the Fourth Proportional to 18,825,274.51, 28,249,855.22 and 8,042,656.57

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Solution

The fourth proportional to 18,825,274.51, 28,249,855.22 and 8,042,656.57 is: 12,069,087.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825,274.51 : 28,249,855.22 = 8,042,656.57 : x
  2. Step 2: Convert to fraction form
    18,825,274.51/28,249,855.22 = 8,042,656.57/x
  3. Step 3: Cross multiply
    18,825,274.51x = 28,249,855.22 × 8,042,656.57
  4. Step 4: Simplify right side
    18,825,274.51x = 227,203,883,686,681.78
  5. Step 5: Solve for x
    x = 227,203,883,686,681.78/18,825,274.51
  6. Step 6: Final answer
    x = 12,069,087.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.