Home / 30,928,005.20-42,681,175.80-16,989,947.60

Finding the Fourth Proportional to 30,928,005.20, 42,681,175.80 and 16,989,947.60

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Solution

The fourth proportional to 30,928,005.20, 42,681,175.80 and 16,989,947.60 is: 23,446,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928,005.20 : 42,681,175.80 = 16,989,947.60 : x
  2. Step 2: Convert to fraction form
    30,928,005.20/42,681,175.80 = 16,989,947.60/x
  3. Step 3: Cross multiply
    30,928,005.20x = 42,681,175.80 × 16,989,947.60
  4. Step 4: Simplify right side
    30,928,005.20x = 725,150,940,348,388.12
  5. Step 5: Solve for x
    x = 725,150,940,348,388.12/30,928,005.20
  6. Step 6: Final answer
    x = 23,446,418.08

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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.