Home / 13,921,261.40-20,881,892.10-12,976,477.40

Finding the Fourth Proportional to 13,921,261.40, 20,881,892.10 and 12,976,477.40

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Solution

The fourth proportional to 13,921,261.40, 20,881,892.10 and 12,976,477.40 is: 19,464,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,261.40 : 20,881,892.10 = 12,976,477.40 : x
  2. Step 2: Convert to fraction form
    13,921,261.40/20,881,892.10 = 12,976,477.40/x
  3. Step 3: Cross multiply
    13,921,261.40x = 20,881,892.10 × 12,976,477.40
  4. Step 4: Simplify right side
    13,921,261.40x = 270,973,400,904,888.56
  5. Step 5: Solve for x
    x = 270,973,400,904,888.56/13,921,261.40
  6. Step 6: Final answer
    x = 19,464,716.10

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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.