Home / 28,513,999.70-42,770,999.55-9,340,133.30

Finding the Fourth Proportional to 28,513,999.70, 42,770,999.55 and 9,340,133.30

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Solution

The fourth proportional to 28,513,999.70, 42,770,999.55 and 9,340,133.30 is: 14,010,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513,999.70 : 42,770,999.55 = 9,340,133.30 : x
  2. Step 2: Convert to fraction form
    28,513,999.70/42,770,999.55 = 9,340,133.30/x
  3. Step 3: Cross multiply
    28,513,999.70x = 42,770,999.55 × 9,340,133.30
  4. Step 4: Simplify right side
    28,513,999.70x = 399,486,837,171,240
  5. Step 5: Solve for x
    x = 399,486,837,171,240/28,513,999.70
  6. Step 6: Final answer
    x = 14,010,199.95

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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.