Home / 18,599,528-25,677,872.16-12,078,989.12

Finding the Fourth Proportional to 18,599,528, 25,677,872.16 and 12,078,989.12

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Solution

The fourth proportional to 18,599,528, 25,677,872.16 and 12,078,989.12 is: 16,675,839.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599,528 : 25,677,872.16 = 12,078,989.12 : x
  2. Step 2: Convert to fraction form
    18,599,528/25,677,872.16 = 12,078,989.12/x
  3. Step 3: Cross multiply
    18,599,528x = 25,677,872.16 × 12,078,989.12
  4. Step 4: Simplify right side
    18,599,528x = 310,162,738,445,390.88
  5. Step 5: Solve for x
    x = 310,162,738,445,390.88/18,599,528
  6. Step 6: Final answer
    x = 16,675,839.22

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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.