Home / 12,989,709.54-17,926,091.64-8,413,995.24

Finding the Fourth Proportional to 12,989,709.54, 17,926,091.64 and 8,413,995.24

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Solution

The fourth proportional to 12,989,709.54, 17,926,091.64 and 8,413,995.24 is: 11,611,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,709.54 : 17,926,091.64 = 8,413,995.24 : x
  2. Step 2: Convert to fraction form
    12,989,709.54/17,926,091.64 = 8,413,995.24/x
  3. Step 3: Cross multiply
    12,989,709.54x = 17,926,091.64 × 8,413,995.24
  4. Step 4: Simplify right side
    12,989,709.54x = 150,830,049,730,763.81
  5. Step 5: Solve for x
    x = 150,830,049,730,763.81/12,989,709.54
  6. Step 6: Final answer
    x = 11,611,502.88

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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.