Home / 19,310,891.24-28,991,667.18-12,949,617.80

Finding the Fourth Proportional to 19,310,891.24, 28,991,667.18 and 12,949,617.80

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Solution

The fourth proportional to 19,310,891.24, 28,991,667.18 and 12,949,617.80 is: 19,441,412.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310,891.24 : 28,991,667.18 = 12,949,617.80 : x
  2. Step 2: Convert to fraction form
    19,310,891.24/28,991,667.18 = 12,949,617.80/x
  3. Step 3: Cross multiply
    19,310,891.24x = 28,991,667.18 × 12,949,617.80
  4. Step 4: Simplify right side
    19,310,891.24x = 375,431,009,365,803.81
  5. Step 5: Solve for x
    x = 375,431,009,365,803.81/19,310,891.24
  6. Step 6: Final answer
    x = 19,441,412.86

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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.