Home / 28,775,191.11-39,710,042.64-15,722,448.81

Finding the Fourth Proportional to 28,775,191.11, 39,710,042.64 and 15,722,448.81

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Solution

The fourth proportional to 28,775,191.11, 39,710,042.64 and 15,722,448.81 is: 21,697,131.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,191.11 : 39,710,042.64 = 15,722,448.81 : x
  2. Step 2: Convert to fraction form
    28,775,191.11/39,710,042.64 = 15,722,448.81/x
  3. Step 3: Cross multiply
    28,775,191.11x = 39,710,042.64 × 15,722,448.81
  4. Step 4: Simplify right side
    28,775,191.11x = 624,339,112,650,317.25
  5. Step 5: Solve for x
    x = 624,339,112,650,317.25/28,775,191.11
  6. Step 6: Final answer
    x = 21,697,131.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.