Home / 15,077,220.16-20,806,548.07-8,201,685.82

Finding the Fourth Proportional to 15,077,220.16, 20,806,548.07 and 8,201,685.82

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Solution

The fourth proportional to 15,077,220.16, 20,806,548.07 and 8,201,685.82 is: 11,318,317.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077,220.16 : 20,806,548.07 = 8,201,685.82 : x
  2. Step 2: Convert to fraction form
    15,077,220.16/20,806,548.07 = 8,201,685.82/x
  3. Step 3: Cross multiply
    15,077,220.16x = 20,806,548.07 × 8,201,685.82
  4. Step 4: Simplify right side
    15,077,220.16x = 170,648,770,268,867.38
  5. Step 5: Solve for x
    x = 170,648,770,268,867.38/15,077,220.16
  6. Step 6: Final answer
    x = 11,318,317.86

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1.5x scale

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.