Home / 13,716,620.40-20,553,935.40-12,960,793.20

Finding the Fourth Proportional to 13,716,620.40, 20,553,935.40 and 12,960,793.20

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Solution

The fourth proportional to 13,716,620.40, 20,553,935.40 and 12,960,793.20 is: 19,421,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716,620.40 : 20,553,935.40 = 12,960,793.20 : x
  2. Step 2: Convert to fraction form
    13,716,620.40/20,553,935.40 = 12,960,793.20/x
  3. Step 3: Cross multiply
    13,716,620.40x = 20,553,935.40 × 12,960,793.20
  4. Step 4: Simplify right side
    13,716,620.40x = 266,395,306,165,559.25
  5. Step 5: Solve for x
    x = 266,395,306,165,559.25/13,716,620.40
  6. Step 6: Final answer
    x = 19,421,351.50

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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.