Home / 128,758,676.40-193,138,014.60-117,043,354.80

Finding the Fourth Proportional to 128,758,676.40, 193,138,014.60 and 117,043,354.80

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Solution

The fourth proportional to 128,758,676.40, 193,138,014.60 and 117,043,354.80 is: 175,565,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,758,676.40 : 193,138,014.60 = 117,043,354.80 : x
  2. Step 2: Convert to fraction form
    128,758,676.40/193,138,014.60 = 117,043,354.80/x
  3. Step 3: Cross multiply
    128,758,676.40x = 193,138,014.60 × 117,043,354.80
  4. Step 4: Simplify right side
    128,758,676.40x = 22,605,521,168,195,380
  5. Step 5: Solve for x
    x = 22,605,521,168,195,380/128,758,676.40
  6. Step 6: Final answer
    x = 175,565,032.20

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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.