Home / 12,750,643.80-19,125,965.70-4,231,258.20

Finding the Fourth Proportional to 12,750,643.80, 19,125,965.70 and 4,231,258.20

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Solution

The fourth proportional to 12,750,643.80, 19,125,965.70 and 4,231,258.20 is: 6,346,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750,643.80 : 19,125,965.70 = 4,231,258.20 : x
  2. Step 2: Convert to fraction form
    12,750,643.80/19,125,965.70 = 4,231,258.20/x
  3. Step 3: Cross multiply
    12,750,643.80x = 19,125,965.70 × 4,231,258.20
  4. Step 4: Simplify right side
    12,750,643.80x = 80,926,899,201,043.73
  5. Step 5: Solve for x
    x = 80,926,899,201,043.73/12,750,643.80
  6. Step 6: Final answer
    x = 6,346,887.30

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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.