Home / 15,853,866.75-21,877,603.96-8,978,398.03

Finding the Fourth Proportional to 15,853,866.75, 21,877,603.96 and 8,978,398.03

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Solution

The fourth proportional to 15,853,866.75, 21,877,603.96 and 8,978,398.03 is: 12,389,774.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,853,866.75 : 21,877,603.96 = 8,978,398.03 : x
  2. Step 2: Convert to fraction form
    15,853,866.75/21,877,603.96 = 8,978,398.03/x
  3. Step 3: Cross multiply
    15,853,866.75x = 21,877,603.96 × 8,978,398.03
  4. Step 4: Simplify right side
    15,853,866.75x = 196,425,836,250,692.19
  5. Step 5: Solve for x
    x = 196,425,836,250,692.19/15,853,866.75
  6. Step 6: Final answer
    x = 12,389,774.64

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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.