Home / 30,914,139.20-42,669,268.08-17,868,975.80

Finding the Fourth Proportional to 30,914,139.20, 42,669,268.08 and 17,868,975.80

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Solution

The fourth proportional to 30,914,139.20, 42,669,268.08 and 17,868,975.80 is: 24,663,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,914,139.20 : 42,669,268.08 = 17,868,975.80 : x
  2. Step 2: Convert to fraction form
    30,914,139.20/42,669,268.08 = 17,868,975.80/x
  3. Step 3: Cross multiply
    30,914,139.20x = 42,669,268.08 × 17,868,975.80
  4. Step 4: Simplify right side
    30,914,139.20x = 762,456,118,725,232.50
  5. Step 5: Solve for x
    x = 762,456,118,725,232.50/30,914,139.20
  6. Step 6: Final answer
    x = 24,663,669.71

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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.