Home / 193,914,901.80-290,872,352.70-78,981,928.20

Finding the Fourth Proportional to 193,914,901.80, 290,872,352.70 and 78,981,928.20

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Solution

The fourth proportional to 193,914,901.80, 290,872,352.70 and 78,981,928.20 is: 118,472,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,914,901.80 : 290,872,352.70 = 78,981,928.20 : x
  2. Step 2: Convert to fraction form
    193,914,901.80/290,872,352.70 = 78,981,928.20/x
  3. Step 3: Cross multiply
    193,914,901.80x = 290,872,352.70 × 78,981,928.20
  4. Step 4: Simplify right side
    193,914,901.80x = 22,973,659,276,316,476
  5. Step 5: Solve for x
    x = 22,973,659,276,316,476/193,914,901.80
  6. Step 6: Final answer
    x = 118,472,892.30

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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.