Home / 200,385,979.80-300,578,969.70-119,764,411.80

Finding the Fourth Proportional to 200,385,979.80, 300,578,969.70 and 119,764,411.80

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Solution

The fourth proportional to 200,385,979.80, 300,578,969.70 and 119,764,411.80 is: 179,646,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,385,979.80 : 300,578,969.70 = 119,764,411.80 : x
  2. Step 2: Convert to fraction form
    200,385,979.80/300,578,969.70 = 119,764,411.80/x
  3. Step 3: Cross multiply
    200,385,979.80x = 300,578,969.70 × 119,764,411.80
  4. Step 4: Simplify right side
    200,385,979.80x = 35,998,663,505,570,520
  5. Step 5: Solve for x
    x = 35,998,663,505,570,520/200,385,979.80
  6. Step 6: Final answer
    x = 179,646,617.70

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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.