Home / 19,181,231.40-28,771,847.10-12,014,869.80

Finding the Fourth Proportional to 19,181,231.40, 28,771,847.10 and 12,014,869.80

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Solution

The fourth proportional to 19,181,231.40, 28,771,847.10 and 12,014,869.80 is: 18,022,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181,231.40 : 28,771,847.10 = 12,014,869.80 : x
  2. Step 2: Convert to fraction form
    19,181,231.40/28,771,847.10 = 12,014,869.80/x
  3. Step 3: Cross multiply
    19,181,231.40x = 28,771,847.10 × 12,014,869.80
  4. Step 4: Simplify right side
    19,181,231.40x = 345,689,996,812,007.62
  5. Step 5: Solve for x
    x = 345,689,996,812,007.62/19,181,231.40
  6. Step 6: Final answer
    x = 18,022,304.70

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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.