Home / 20,839,797.76-31,279,875.36-10,064,672.32

Finding the Fourth Proportional to 20,839,797.76, 31,279,875.36 and 10,064,672.32

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Solution

The fourth proportional to 20,839,797.76, 31,279,875.36 and 10,064,672.32 is: 15,106,753.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839,797.76 : 31,279,875.36 = 10,064,672.32 : x
  2. Step 2: Convert to fraction form
    20,839,797.76/31,279,875.36 = 10,064,672.32/x
  3. Step 3: Cross multiply
    20,839,797.76x = 31,279,875.36 × 10,064,672.32
  4. Step 4: Simplify right side
    20,839,797.76x = 314,821,695,708,842.06
  5. Step 5: Solve for x
    x = 314,821,695,708,842.06/20,839,797.76
  6. Step 6: Final answer
    x = 15,106,753.88

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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.