Home / 12,939,215.20-19,406,101.20-6,543,455.20

Finding the Fourth Proportional to 12,939,215.20, 19,406,101.20 and 6,543,455.20

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Solution

The fourth proportional to 12,939,215.20, 19,406,101.20 and 6,543,455.20 is: 9,813,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,215.20 : 19,406,101.20 = 6,543,455.20 : x
  2. Step 2: Convert to fraction form
    12,939,215.20/19,406,101.20 = 6,543,455.20/x
  3. Step 3: Cross multiply
    12,939,215.20x = 19,406,101.20 × 6,543,455.20
  4. Step 4: Simplify right side
    12,939,215.20x = 126,982,953,808,866.23
  5. Step 5: Solve for x
    x = 126,982,953,808,866.23/12,939,215.20
  6. Step 6: Final answer
    x = 9,813,806.47

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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.