Home / 19,310,940.12-28,991,740.98-12,949,666.68

Finding the Fourth Proportional to 19,310,940.12, 28,991,740.98 and 12,949,666.68

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Solution

The fourth proportional to 19,310,940.12, 28,991,740.98 and 12,949,666.68 is: 19,441,486.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,310,940.12 : 28,991,740.98 = 12,949,666.68 : x
  2. Step 2: Convert to fraction form
    19,310,940.12/28,991,740.98 = 12,949,666.68/x
  3. Step 3: Cross multiply
    19,310,940.12x = 28,991,740.98 × 12,949,666.68
  4. Step 4: Simplify right side
    19,310,940.12x = 375,433,382,163,896.56
  5. Step 5: Solve for x
    x = 375,433,382,163,896.56/19,310,940.12
  6. Step 6: Final answer
    x = 19,441,486.53

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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.