Home / 9,155,511.92-12,628,859.42-5,431,706.54

Finding the Fourth Proportional to 9,155,511.92, 12,628,859.42 and 5,431,706.54

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Solution

The fourth proportional to 9,155,511.92, 12,628,859.42 and 5,431,706.54 is: 7,492,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155,511.92 : 12,628,859.42 = 5,431,706.54 : x
  2. Step 2: Convert to fraction form
    9,155,511.92/12,628,859.42 = 5,431,706.54/x
  3. Step 3: Cross multiply
    9,155,511.92x = 12,628,859.42 × 5,431,706.54
  4. Step 4: Simplify right side
    9,155,511.92x = 68,596,258,241,210.31
  5. Step 5: Solve for x
    x = 68,596,258,241,210.31/9,155,511.92
  6. Step 6: Final answer
    x = 7,492,345.47

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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.