Home / 30,628,270.80-42,267,916.80-16,878,121.20

Finding the Fourth Proportional to 30,628,270.80, 42,267,916.80 and 16,878,121.20

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Solution

The fourth proportional to 30,628,270.80, 42,267,916.80 and 16,878,121.20 is: 23,292,304.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,628,270.80 : 42,267,916.80 = 16,878,121.20 : x
  2. Step 2: Convert to fraction form
    30,628,270.80/42,267,916.80 = 16,878,121.20/x
  3. Step 3: Cross multiply
    30,628,270.80x = 42,267,916.80 × 16,878,121.20
  4. Step 4: Simplify right side
    30,628,270.80x = 713,403,022,621,916.12
  5. Step 5: Solve for x
    x = 713,403,022,621,916.12/30,628,270.80
  6. Step 6: Final answer
    x = 23,292,304.92

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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.