Home / 12,400,345.40-18,603,661.94-8,764,229.48

Finding the Fourth Proportional to 12,400,345.40, 18,603,661.94 and 8,764,229.48

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Solution

The fourth proportional to 12,400,345.40, 18,603,661.94 and 8,764,229.48 is: 13,148,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400,345.40 : 18,603,661.94 = 8,764,229.48 : x
  2. Step 2: Convert to fraction form
    12,400,345.40/18,603,661.94 = 8,764,229.48/x
  3. Step 3: Cross multiply
    12,400,345.40x = 18,603,661.94 × 8,764,229.48
  4. Step 4: Simplify right side
    12,400,345.40x = 163,046,762,366,680.84
  5. Step 5: Solve for x
    x = 163,046,762,366,680.84/12,400,345.40
  6. Step 6: Final answer
    x = 13,148,566.20

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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.