Home / 13,509,902.76-18,643,525.92-7,314,842.88

Finding the Fourth Proportional to 13,509,902.76, 18,643,525.92 and 7,314,842.88

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Solution

The fourth proportional to 13,509,902.76, 18,643,525.92 and 7,314,842.88 is: 10,094,407.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509,902.76 : 18,643,525.92 = 7,314,842.88 : x
  2. Step 2: Convert to fraction form
    13,509,902.76/18,643,525.92 = 7,314,842.88/x
  3. Step 3: Cross multiply
    13,509,902.76x = 18,643,525.92 × 7,314,842.88
  4. Step 4: Simplify right side
    13,509,902.76x = 136,374,462,834,007.45
  5. Step 5: Solve for x
    x = 136,374,462,834,007.45/13,509,902.76
  6. Step 6: Final answer
    x = 10,094,407.43

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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.