Home / 28,161,191.49-42,259,556.97-11,987,116.98

Finding the Fourth Proportional to 28,161,191.49, 42,259,556.97 and 11,987,116.98

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Solution

The fourth proportional to 28,161,191.49, 42,259,556.97 and 11,987,116.98 is: 17,988,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,191.49 : 42,259,556.97 = 11,987,116.98 : x
  2. Step 2: Convert to fraction form
    28,161,191.49/42,259,556.97 = 11,987,116.98/x
  3. Step 3: Cross multiply
    28,161,191.49x = 42,259,556.97 × 11,987,116.98
  4. Step 4: Simplify right side
    28,161,191.49x = 506,570,252,922,364.38
  5. Step 5: Solve for x
    x = 506,570,252,922,364.38/28,161,191.49
  6. Step 6: Final answer
    x = 17,988,239.35

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1.5x scale

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.