Home / 15,458,849.11-21,335,835.81-8,936,259.72

Finding the Fourth Proportional to 15,458,849.11, 21,335,835.81 and 8,936,259.72

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Solution

The fourth proportional to 15,458,849.11, 21,335,835.81 and 8,936,259.72 is: 12,333,555.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458,849.11 : 21,335,835.81 = 8,936,259.72 : x
  2. Step 2: Convert to fraction form
    15,458,849.11/21,335,835.81 = 8,936,259.72/x
  3. Step 3: Cross multiply
    15,458,849.11x = 21,335,835.81 × 8,936,259.72
  4. Step 4: Simplify right side
    15,458,849.11x = 190,662,570,141,436.56
  5. Step 5: Solve for x
    x = 190,662,570,141,436.56/15,458,849.11
  6. Step 6: Final answer
    x = 12,333,555.29

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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.