Home / 18,986,549.86-26,200,901.95-11,145,936.16

Finding the Fourth Proportional to 18,986,549.86, 26,200,901.95 and 11,145,936.16

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Solution

The fourth proportional to 18,986,549.86, 26,200,901.95 and 11,145,936.16 is: 15,381,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986,549.86 : 26,200,901.95 = 11,145,936.16 : x
  2. Step 2: Convert to fraction form
    18,986,549.86/26,200,901.95 = 11,145,936.16/x
  3. Step 3: Cross multiply
    18,986,549.86x = 26,200,901.95 × 11,145,936.16
  4. Step 4: Simplify right side
    18,986,549.86x = 292,033,580,469,119.50
  5. Step 5: Solve for x
    x = 292,033,580,469,119.50/18,986,549.86
  6. Step 6: Final answer
    x = 15,381,076.74

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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.