Home / 10,801,131.40-16,201,697.10-9,979,985.80

Finding the Fourth Proportional to 10,801,131.40, 16,201,697.10 and 9,979,985.80

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Solution

The fourth proportional to 10,801,131.40, 16,201,697.10 and 9,979,985.80 is: 14,969,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,801,131.40 : 16,201,697.10 = 9,979,985.80 : x
  2. Step 2: Convert to fraction form
    10,801,131.40/16,201,697.10 = 9,979,985.80/x
  3. Step 3: Cross multiply
    10,801,131.40x = 16,201,697.10 × 9,979,985.80
  4. Step 4: Simplify right side
    10,801,131.40x = 161,692,706,993,901.19
  5. Step 5: Solve for x
    x = 161,692,706,993,901.19/10,801,131.40
  6. Step 6: Final answer
    x = 14,969,978.70

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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.