Home / 12,875,261.20-19,312,891.80-11,456,918.80

Finding the Fourth Proportional to 12,875,261.20, 19,312,891.80 and 11,456,918.80

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Solution

The fourth proportional to 12,875,261.20, 19,312,891.80 and 11,456,918.80 is: 17,185,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875,261.20 : 19,312,891.80 = 11,456,918.80 : x
  2. Step 2: Convert to fraction form
    12,875,261.20/19,312,891.80 = 11,456,918.80/x
  3. Step 3: Cross multiply
    12,875,261.20x = 19,312,891.80 × 11,456,918.80
  4. Step 4: Simplify right side
    12,875,261.20x = 221,266,233,145,785.88
  5. Step 5: Solve for x
    x = 221,266,233,145,785.88/12,875,261.20
  6. Step 6: Final answer
    x = 17,185,378.20

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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.