Home / 193,914,903.80-290,872,355.70-78,981,930.20

Finding the Fourth Proportional to 193,914,903.80, 290,872,355.70 and 78,981,930.20

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Solution

The fourth proportional to 193,914,903.80, 290,872,355.70 and 78,981,930.20 is: 118,472,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,914,903.80 : 290,872,355.70 = 78,981,930.20 : x
  2. Step 2: Convert to fraction form
    193,914,903.80/290,872,355.70 = 78,981,930.20/x
  3. Step 3: Cross multiply
    193,914,903.80x = 290,872,355.70 × 78,981,930.20
  4. Step 4: Simplify right side
    193,914,903.80x = 22,973,660,095,006,972
  5. Step 5: Solve for x
    x = 22,973,660,095,006,972/193,914,903.80
  6. Step 6: Final answer
    x = 118,472,895.30

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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.