Home / 12,590,600.80-18,885,901.20-5,022,997.60

Finding the Fourth Proportional to 12,590,600.80, 18,885,901.20 and 5,022,997.60

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Solution

The fourth proportional to 12,590,600.80, 18,885,901.20 and 5,022,997.60 is: 7,534,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,600.80 : 18,885,901.20 = 5,022,997.60 : x
  2. Step 2: Convert to fraction form
    12,590,600.80/18,885,901.20 = 5,022,997.60/x
  3. Step 3: Cross multiply
    12,590,600.80x = 18,885,901.20 × 5,022,997.60
  4. Step 4: Simplify right side
    12,590,600.80x = 94,863,836,401,437.11
  5. Step 5: Solve for x
    x = 94,863,836,401,437.11/12,590,600.80
  6. Step 6: Final answer
    x = 7,534,496.40

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1.5x scale

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.