Home / 28,247,899.41-42,289,536.75-20,993,480.65

Finding the Fourth Proportional to 28,247,899.41, 42,289,536.75 and 20,993,480.65

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Solution

The fourth proportional to 28,247,899.41, 42,289,536.75 and 20,993,480.65 is: 31,429,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247,899.41 : 42,289,536.75 = 20,993,480.65 : x
  2. Step 2: Convert to fraction form
    28,247,899.41/42,289,536.75 = 20,993,480.65/x
  3. Step 3: Cross multiply
    28,247,899.41x = 42,289,536.75 × 20,993,480.65
  4. Step 4: Simplify right side
    28,247,899.41x = 887,804,571,313,807.12
  5. Step 5: Solve for x
    x = 887,804,571,313,807.12/28,247,899.41
  6. Step 6: Final answer
    x = 31,429,047.47

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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.