Home / 10,129,159.51-13,979,571.28-5,777,248.21

Finding the Fourth Proportional to 10,129,159.51, 13,979,571.28 and 5,777,248.21

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Solution

The fourth proportional to 10,129,159.51, 13,979,571.28 and 5,777,248.21 is: 7,973,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129,159.51 : 13,979,571.28 = 5,777,248.21 : x
  2. Step 2: Convert to fraction form
    10,129,159.51/13,979,571.28 = 5,777,248.21/x
  3. Step 3: Cross multiply
    10,129,159.51x = 13,979,571.28 × 5,777,248.21
  4. Step 4: Simplify right side
    10,129,159.51x = 80,763,453,104,555.36
  5. Step 5: Solve for x
    x = 80,763,453,104,555.36/10,129,159.51
  6. Step 6: Final answer
    x = 7,973,361.76

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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.