Home / 128,124,003.60-191,738,107.80-117,374,461.20

Finding the Fourth Proportional to 128,124,003.60, 191,738,107.80 and 117,374,461.20

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Solution

The fourth proportional to 128,124,003.60, 191,738,107.80 and 117,374,461.20 is: 175,651,372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,124,003.60 : 191,738,107.80 = 117,374,461.20 : x
  2. Step 2: Convert to fraction form
    128,124,003.60/191,738,107.80 = 117,374,461.20/x
  3. Step 3: Cross multiply
    128,124,003.60x = 191,738,107.80 × 117,374,461.20
  4. Step 4: Simplify right side
    128,124,003.60x = 22,505,157,094,532,520
  5. Step 5: Solve for x
    x = 22,505,157,094,532,520/128,124,003.60
  6. Step 6: Final answer
    x = 175,651,372.59

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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.