Home / 128,945,391.60-193,418,087.40-114,836,617.20

Finding the Fourth Proportional to 128,945,391.60, 193,418,087.40 and 114,836,617.20

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Solution

The fourth proportional to 128,945,391.60, 193,418,087.40 and 114,836,617.20 is: 172,254,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,945,391.60 : 193,418,087.40 = 114,836,617.20 : x
  2. Step 2: Convert to fraction form
    128,945,391.60/193,418,087.40 = 114,836,617.20/x
  3. Step 3: Cross multiply
    128,945,391.60x = 193,418,087.40 × 114,836,617.20
  4. Step 4: Simplify right side
    128,945,391.60x = 22,211,478,862,309,944
  5. Step 5: Solve for x
    x = 22,211,478,862,309,944/128,945,391.60
  6. Step 6: Final answer
    x = 172,254,925.80

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1.5x scale

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.