Home / 128,414,976,007.10-192,622,464,010.65-83,784,135,674.30

Finding the Fourth Proportional to 128,414,976,007.10, 192,622,464,010.65 and 83,784,135,674.30

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Solution

The fourth proportional to 128,414,976,007.10, 192,622,464,010.65 and 83,784,135,674.30 is: 125,676,203,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,414,976,007.10 : 192,622,464,010.65 = 83,784,135,674.30 : x
  2. Step 2: Convert to fraction form
    128,414,976,007.10/192,622,464,010.65 = 83,784,135,674.30/x
  3. Step 3: Cross multiply
    128,414,976,007.10x = 192,622,464,010.65 × 83,784,135,674.30
  4. Step 4: Simplify right side
    128,414,976,007.10x = 16,138,706,658,586,267,746,304
  5. Step 5: Solve for x
    x = 16,138,706,658,586,267,746,304/128,414,976,007.10
  6. Step 6: Final answer
    x = 125,676,203,511.45

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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.