Home / 128,636,488.94-192,449,633.54-99,268,450.25

Finding the Fourth Proportional to 128,636,488.94, 192,449,633.54 and 99,268,450.25

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Solution

The fourth proportional to 128,636,488.94, 192,449,633.54 and 99,268,450.25 is: 148,512,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,636,488.94 : 192,449,633.54 = 99,268,450.25 : x
  2. Step 2: Convert to fraction form
    128,636,488.94/192,449,633.54 = 99,268,450.25/x
  3. Step 3: Cross multiply
    128,636,488.94x = 192,449,633.54 × 99,268,450.25
  4. Step 4: Simplify right side
    128,636,488.94x = 19,104,176,871,237,632
  5. Step 5: Solve for x
    x = 19,104,176,871,237,632/128,636,488.94
  6. Step 6: Final answer
    x = 148,512,891.09

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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.