Home / 132,841,322.40-199,261,983.60-81,557,047.20

Finding the Fourth Proportional to 132,841,322.40, 199,261,983.60 and 81,557,047.20

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Solution

The fourth proportional to 132,841,322.40, 199,261,983.60 and 81,557,047.20 is: 122,335,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,841,322.40 : 199,261,983.60 = 81,557,047.20 : x
  2. Step 2: Convert to fraction form
    132,841,322.40/199,261,983.60 = 81,557,047.20/x
  3. Step 3: Cross multiply
    132,841,322.40x = 199,261,983.60 × 81,557,047.20
  4. Step 4: Simplify right side
    132,841,322.40x = 16,251,219,001,630,826
  5. Step 5: Solve for x
    x = 16,251,219,001,630,826/132,841,322.40
  6. Step 6: Final answer
    x = 122,335,570.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.