Home / 13,120,989.41-19,680,155.29-3,537,336.71

Finding the Fourth Proportional to 13,120,989.41, 19,680,155.29 and 3,537,336.71

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Solution

The fourth proportional to 13,120,989.41, 19,680,155.29 and 3,537,336.71 is: 5,305,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,989.41 : 19,680,155.29 = 3,537,336.71 : x
  2. Step 2: Convert to fraction form
    13,120,989.41/19,680,155.29 = 3,537,336.71/x
  3. Step 3: Cross multiply
    13,120,989.41x = 19,680,155.29 × 3,537,336.71
  4. Step 4: Simplify right side
    13,120,989.41x = 69,615,335,806,174.74
  5. Step 5: Solve for x
    x = 69,615,335,806,174.74/13,120,989.41
  6. Step 6: Final answer
    x = 5,305,646.82

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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.