Home / 15,322,628.40-21,146,179.36-8,447,097.84

Finding the Fourth Proportional to 15,322,628.40, 21,146,179.36 and 8,447,097.84

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Solution

The fourth proportional to 15,322,628.40, 21,146,179.36 and 8,447,097.84 is: 11,657,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322,628.40 : 21,146,179.36 = 8,447,097.84 : x
  2. Step 2: Convert to fraction form
    15,322,628.40/21,146,179.36 = 8,447,097.84/x
  3. Step 3: Cross multiply
    15,322,628.40x = 21,146,179.36 × 8,447,097.84
  4. Step 4: Simplify right side
    15,322,628.40x = 178,623,845,996,108.56
  5. Step 5: Solve for x
    x = 178,623,845,996,108.56/15,322,628.40
  6. Step 6: Final answer
    x = 11,657,519.93

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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.