Home / 18,611,356.68-25,666,344.18-12,078,000.36

Finding the Fourth Proportional to 18,611,356.68, 25,666,344.18 and 12,078,000.36

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Solution

The fourth proportional to 18,611,356.68, 25,666,344.18 and 12,078,000.36 is: 16,656,395.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611,356.68 : 25,666,344.18 = 12,078,000.36 : x
  2. Step 2: Convert to fraction form
    18,611,356.68/25,666,344.18 = 12,078,000.36/x
  3. Step 3: Cross multiply
    18,611,356.68x = 25,666,344.18 × 12,078,000.36
  4. Step 4: Simplify right side
    18,611,356.68x = 309,998,114,245,923.88
  5. Step 5: Solve for x
    x = 309,998,114,245,923.88/18,611,356.68
  6. Step 6: Final answer
    x = 16,656,395.32

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1.5x scale

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.