Home / 18,907,331.40-28,360,997.10-11,732,877.90

Finding the Fourth Proportional to 18,907,331.40, 28,360,997.10 and 11,732,877.90

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Solution

The fourth proportional to 18,907,331.40, 28,360,997.10 and 11,732,877.90 is: 17,599,316.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907,331.40 : 28,360,997.10 = 11,732,877.90 : x
  2. Step 2: Convert to fraction form
    18,907,331.40/28,360,997.10 = 11,732,877.90/x
  3. Step 3: Cross multiply
    18,907,331.40x = 28,360,997.10 × 11,732,877.90
  4. Step 4: Simplify right side
    18,907,331.40x = 332,756,116,096,554.12
  5. Step 5: Solve for x
    x = 332,756,116,096,554.12/18,907,331.40
  6. Step 6: Final answer
    x = 17,599,316.85

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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.