Home / 13,642,087.74-18,825,419.99-7,761,168.20

Finding the Fourth Proportional to 13,642,087.74, 18,825,419.99 and 7,761,168.20

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Solution

The fourth proportional to 13,642,087.74, 18,825,419.99 and 7,761,168.20 is: 10,710,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,087.74 : 18,825,419.99 = 7,761,168.20 : x
  2. Step 2: Convert to fraction form
    13,642,087.74/18,825,419.99 = 7,761,168.20/x
  3. Step 3: Cross multiply
    13,642,087.74x = 18,825,419.99 × 7,761,168.20
  4. Step 4: Simplify right side
    13,642,087.74x = 146,107,250,978,032.31
  5. Step 5: Solve for x
    x = 146,107,250,978,032.31/13,642,087.74
  6. Step 6: Final answer
    x = 10,710,036.01

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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.