Home / 40,368,078.16-55,780,818.33-28,745,463.58

Finding the Fourth Proportional to 40,368,078.16, 55,780,818.33 and 28,745,463.58

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Solution

The fourth proportional to 40,368,078.16, 55,780,818.33 and 28,745,463.58 is: 39,720,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,368,078.16 : 55,780,818.33 = 28,745,463.58 : x
  2. Step 2: Convert to fraction form
    40,368,078.16/55,780,818.33 = 28,745,463.58/x
  3. Step 3: Cross multiply
    40,368,078.16x = 55,780,818.33 × 28,745,463.58
  4. Step 4: Simplify right side
    40,368,078.16x = 1,603,445,481,767,611.25
  5. Step 5: Solve for x
    x = 1,603,445,481,767,611.25/40,368,078.16
  6. Step 6: Final answer
    x = 39,720,629.64

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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.