Home / 132,890,476.40-199,335,714.60-81,606,201.20

Finding the Fourth Proportional to 132,890,476.40, 199,335,714.60 and 81,606,201.20

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Solution

The fourth proportional to 132,890,476.40, 199,335,714.60 and 81,606,201.20 is: 122,409,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,890,476.40 : 199,335,714.60 = 81,606,201.20 : x
  2. Step 2: Convert to fraction form
    132,890,476.40/199,335,714.60 = 81,606,201.20/x
  3. Step 3: Cross multiply
    132,890,476.40x = 199,335,714.60 × 81,606,201.20
  4. Step 4: Simplify right side
    132,890,476.40x = 16,267,030,431,993,378
  5. Step 5: Solve for x
    x = 16,267,030,431,993,378/132,890,476.40
  6. Step 6: Final answer
    x = 122,409,301.80

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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.