Home / 128,304,006.70-192,456,010.05-119,234,080.30

Finding the Fourth Proportional to 128,304,006.70, 192,456,010.05 and 119,234,080.30

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Solution

The fourth proportional to 128,304,006.70, 192,456,010.05 and 119,234,080.30 is: 178,851,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,006.70 : 192,456,010.05 = 119,234,080.30 : x
  2. Step 2: Convert to fraction form
    128,304,006.70/192,456,010.05 = 119,234,080.30/x
  3. Step 3: Cross multiply
    128,304,006.70x = 192,456,010.05 × 119,234,080.30
  4. Step 4: Simplify right side
    128,304,006.70x = 22,947,315,356,519,308
  5. Step 5: Solve for x
    x = 22,947,315,356,519,308/128,304,006.70
  6. Step 6: Final answer
    x = 178,851,120.45

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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.