Home / 11,918,561.70-17,878,006.59-3,398,899.08

Finding the Fourth Proportional to 11,918,561.70, 17,878,006.59 and 3,398,899.08

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Solution

The fourth proportional to 11,918,561.70, 17,878,006.59 and 3,398,899.08 is: 5,098,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918,561.70 : 17,878,006.59 = 3,398,899.08 : x
  2. Step 2: Convert to fraction form
    11,918,561.70/17,878,006.59 = 3,398,899.08/x
  3. Step 3: Cross multiply
    11,918,561.70x = 17,878,006.59 × 3,398,899.08
  4. Step 4: Simplify right side
    11,918,561.70x = 60,765,540,150,984.94
  5. Step 5: Solve for x
    x = 60,765,540,150,984.94/11,918,561.70
  6. Step 6: Final answer
    x = 5,098,395.40

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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.