Home / 12,939,754.80-19,409,632.20-3,963,140.40

Finding the Fourth Proportional to 12,939,754.80, 19,409,632.20 and 3,963,140.40

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Solution

The fourth proportional to 12,939,754.80, 19,409,632.20 and 3,963,140.40 is: 5,944,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,754.80 : 19,409,632.20 = 3,963,140.40 : x
  2. Step 2: Convert to fraction form
    12,939,754.80/19,409,632.20 = 3,963,140.40/x
  3. Step 3: Cross multiply
    12,939,754.80x = 19,409,632.20 × 3,963,140.40
  4. Step 4: Simplify right side
    12,939,754.80x = 76,923,097,520,960.88
  5. Step 5: Solve for x
    x = 76,923,097,520,960.88/12,939,754.80
  6. Step 6: Final answer
    x = 5,944,710.60

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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.