Home / 12,146,551.47-16,762,238.49-6,639,949.11

Finding the Fourth Proportional to 12,146,551.47, 16,762,238.49 and 6,639,949.11

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Solution

The fourth proportional to 12,146,551.47, 16,762,238.49 and 6,639,949.11 is: 9,163,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146,551.47 : 16,762,238.49 = 6,639,949.11 : x
  2. Step 2: Convert to fraction form
    12,146,551.47/16,762,238.49 = 6,639,949.11/x
  3. Step 3: Cross multiply
    12,146,551.47x = 16,762,238.49 × 6,639,949.11
  4. Step 4: Simplify right side
    12,146,551.47x = 111,300,410,543,283.25
  5. Step 5: Solve for x
    x = 111,300,410,543,283.25/12,146,551.47
  6. Step 6: Final answer
    x = 9,163,128.38

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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.