Home / 30,629,219.96-42,268,606.98-16,878,676.28

Finding the Fourth Proportional to 30,629,219.96, 42,268,606.98 and 16,878,676.28

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Solution

The fourth proportional to 30,629,219.96, 42,268,606.98 and 16,878,676.28 is: 23,292,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629,219.96 : 42,268,606.98 = 16,878,676.28 : x
  2. Step 2: Convert to fraction form
    30,629,219.96/42,268,606.98 = 16,878,676.28/x
  3. Step 3: Cross multiply
    30,629,219.96x = 42,268,606.98 × 16,878,676.28
  4. Step 4: Simplify right side
    30,629,219.96x = 713,438,134,021,968.38
  5. Step 5: Solve for x
    x = 713,438,134,021,968.38/30,629,219.96
  6. Step 6: Final answer
    x = 23,292,729.46

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1.5x scale

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.