Home / 30,790,912.28-42,489,730.06-16,852,238.88

Finding the Fourth Proportional to 30,790,912.28, 42,489,730.06 and 16,852,238.88

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Solution

The fourth proportional to 30,790,912.28, 42,489,730.06 and 16,852,238.88 is: 23,255,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790,912.28 : 42,489,730.06 = 16,852,238.88 : x
  2. Step 2: Convert to fraction form
    30,790,912.28/42,489,730.06 = 16,852,238.88/x
  3. Step 3: Cross multiply
    30,790,912.28x = 42,489,730.06 × 16,852,238.88
  4. Step 4: Simplify right side
    30,790,912.28x = 716,047,080,917,836.75
  5. Step 5: Solve for x
    x = 716,047,080,917,836.75/30,790,912.28
  6. Step 6: Final answer
    x = 23,255,143.41

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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.