Home / 10,801,128.40-16,201,692.60-9,979,982.80

Finding the Fourth Proportional to 10,801,128.40, 16,201,692.60 and 9,979,982.80

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Solution

The fourth proportional to 10,801,128.40, 16,201,692.60 and 9,979,982.80 is: 14,969,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,801,128.40 : 16,201,692.60 = 9,979,982.80 : x
  2. Step 2: Convert to fraction form
    10,801,128.40/16,201,692.60 = 9,979,982.80/x
  3. Step 3: Cross multiply
    10,801,128.40x = 16,201,692.60 × 9,979,982.80
  4. Step 4: Simplify right side
    10,801,128.40x = 161,692,613,478,887.28
  5. Step 5: Solve for x
    x = 161,692,613,478,887.28/10,801,128.40
  6. Step 6: Final answer
    x = 14,969,974.20

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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.