Home / 15,323,870.12-21,147,082.70-8,448,598.22

Finding the Fourth Proportional to 15,323,870.12, 21,147,082.70 and 8,448,598.22

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Solution

The fourth proportional to 15,323,870.12, 21,147,082.70 and 8,448,598.22 is: 11,659,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323,870.12 : 21,147,082.70 = 8,448,598.22 : x
  2. Step 2: Convert to fraction form
    15,323,870.12/21,147,082.70 = 8,448,598.22/x
  3. Step 3: Cross multiply
    15,323,870.12x = 21,147,082.70 × 8,448,598.22
  4. Step 4: Simplify right side
    15,323,870.12x = 178,663,205,109,434.38
  5. Step 5: Solve for x
    x = 178,663,205,109,434.38/15,323,870.12
  6. Step 6: Final answer
    x = 11,659,143.79

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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.