Home / 12,289,935.12-16,955,380.12-7,698,262.80

Finding the Fourth Proportional to 12,289,935.12, 16,955,380.12 and 7,698,262.80

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Solution

The fourth proportional to 12,289,935.12, 16,955,380.12 and 7,698,262.80 is: 10,620,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289,935.12 : 16,955,380.12 = 7,698,262.80 : x
  2. Step 2: Convert to fraction form
    12,289,935.12/16,955,380.12 = 7,698,262.80/x
  3. Step 3: Cross multiply
    12,289,935.12x = 16,955,380.12 × 7,698,262.80
  4. Step 4: Simplify right side
    12,289,935.12x = 130,526,972,037,655.55
  5. Step 5: Solve for x
    x = 130,526,972,037,655.55/12,289,935.12
  6. Step 6: Final answer
    x = 10,620,639.63

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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.