Home / 30,629,220.96-42,268,608.36-16,878,677.28

Finding the Fourth Proportional to 30,629,220.96, 42,268,608.36 and 16,878,677.28

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Solution

The fourth proportional to 30,629,220.96, 42,268,608.36 and 16,878,677.28 is: 23,292,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629,220.96 : 42,268,608.36 = 16,878,677.28 : x
  2. Step 2: Convert to fraction form
    30,629,220.96/42,268,608.36 = 16,878,677.28/x
  3. Step 3: Cross multiply
    30,629,220.96x = 42,268,608.36 × 16,878,677.28
  4. Step 4: Simplify right side
    30,629,220.96x = 713,438,199,583,150.12
  5. Step 5: Solve for x
    x = 713,438,199,583,150.12/30,629,220.96
  6. Step 6: Final answer
    x = 23,292,730.84

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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.