Home / 12,673,139.20-19,009,708.80-11,926,643.20

Finding the Fourth Proportional to 12,673,139.20, 19,009,708.80 and 11,926,643.20

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Solution

The fourth proportional to 12,673,139.20, 19,009,708.80 and 11,926,643.20 is: 17,889,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673,139.20 : 19,009,708.80 = 11,926,643.20 : x
  2. Step 2: Convert to fraction form
    12,673,139.20/19,009,708.80 = 11,926,643.20/x
  3. Step 3: Cross multiply
    12,673,139.20x = 19,009,708.80 × 11,926,643.20
  4. Step 4: Simplify right side
    12,673,139.20x = 226,722,014,193,500.16
  5. Step 5: Solve for x
    x = 226,722,014,193,500.16/12,673,139.20
  6. Step 6: Final answer
    x = 17,889,964.80

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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.