Home / 21,789,143.36-30,046,716.96-14,444,421.44

Finding the Fourth Proportional to 21,789,143.36, 30,046,716.96 and 14,444,421.44

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Solution

The fourth proportional to 21,789,143.36, 30,046,716.96 and 14,444,421.44 is: 19,918,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,143.36 : 30,046,716.96 = 14,444,421.44 : x
  2. Step 2: Convert to fraction form
    21,789,143.36/30,046,716.96 = 14,444,421.44/x
  3. Step 3: Cross multiply
    21,789,143.36x = 30,046,716.96 × 14,444,421.44
  4. Step 4: Simplify right side
    21,789,143.36x = 434,007,442,658,635.62
  5. Step 5: Solve for x
    x = 434,007,442,658,635.62/21,789,143.36
  6. Step 6: Final answer
    x = 19,918,517.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.