Home / 136,113,886.40-203,984,205.60-87,442,347.20

Finding the Fourth Proportional to 136,113,886.40, 203,984,205.60 and 87,442,347.20

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Solution

The fourth proportional to 136,113,886.40, 203,984,205.60 and 87,442,347.20 is: 131,043,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,113,886.40 : 203,984,205.60 = 87,442,347.20 : x
  2. Step 2: Convert to fraction form
    136,113,886.40/203,984,205.60 = 87,442,347.20/x
  3. Step 3: Cross multiply
    136,113,886.40x = 203,984,205.60 × 87,442,347.20
  4. Step 4: Simplify right side
    136,113,886.40x = 17,836,857,729,391,384
  5. Step 5: Solve for x
    x = 17,836,857,729,391,384/136,113,886.40
  6. Step 6: Final answer
    x = 131,043,629.72

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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.