Home / 12,881,867.40-19,322,801.10-11,128,112.10

Finding the Fourth Proportional to 12,881,867.40, 19,322,801.10 and 11,128,112.10

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Solution

The fourth proportional to 12,881,867.40, 19,322,801.10 and 11,128,112.10 is: 16,692,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881,867.40 : 19,322,801.10 = 11,128,112.10 : x
  2. Step 2: Convert to fraction form
    12,881,867.40/19,322,801.10 = 11,128,112.10/x
  3. Step 3: Cross multiply
    12,881,867.40x = 19,322,801.10 × 11,128,112.10
  4. Step 4: Simplify right side
    12,881,867.40x = 215,026,296,726,803.31
  5. Step 5: Solve for x
    x = 215,026,296,726,803.31/12,881,867.40
  6. Step 6: Final answer
    x = 16,692,168.15

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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.