Home / 20,918,859.28-31,360,317.84-7,270,232.56

Finding the Fourth Proportional to 20,918,859.28, 31,360,317.84 and 7,270,232.56

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Solution

The fourth proportional to 20,918,859.28, 31,360,317.84 and 7,270,232.56 is: 10,899,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,859.28 : 31,360,317.84 = 7,270,232.56 : x
  2. Step 2: Convert to fraction form
    20,918,859.28/31,360,317.84 = 7,270,232.56/x
  3. Step 3: Cross multiply
    20,918,859.28x = 31,360,317.84 × 7,270,232.56
  4. Step 4: Simplify right side
    20,918,859.28x = 227,996,803,852,316.84
  5. Step 5: Solve for x
    x = 227,996,803,852,316.84/20,918,859.28
  6. Step 6: Final answer
    x = 10,899,103.09

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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.