Home / 128,736,021.60-193,104,032.40-114,627,247.20

Finding the Fourth Proportional to 128,736,021.60, 193,104,032.40 and 114,627,247.20

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Solution

The fourth proportional to 128,736,021.60, 193,104,032.40 and 114,627,247.20 is: 171,940,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,736,021.60 : 193,104,032.40 = 114,627,247.20 : x
  2. Step 2: Convert to fraction form
    128,736,021.60/193,104,032.40 = 114,627,247.20/x
  3. Step 3: Cross multiply
    128,736,021.60x = 193,104,032.40 × 114,627,247.20
  4. Step 4: Simplify right side
    128,736,021.60x = 22,134,983,657,231,612
  5. Step 5: Solve for x
    x = 22,134,983,657,231,612/128,736,021.60
  6. Step 6: Final answer
    x = 171,940,870.80

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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.