Home / 393,663,039.40-590,662,520.70-189,085,810.60

Finding the Fourth Proportional to 393,663,039.40, 590,662,520.70 and 189,085,810.60

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Solution

The fourth proportional to 393,663,039.40, 590,662,520.70 and 189,085,810.60 is: 283,709,391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,663,039.40 : 590,662,520.70 = 189,085,810.60 : x
  2. Step 2: Convert to fraction form
    393,663,039.40/590,662,520.70 = 189,085,810.60/x
  3. Step 3: Cross multiply
    393,663,039.40x = 590,662,520.70 × 189,085,810.60
  4. Step 4: Simplify right side
    393,663,039.40x = 111,685,901,517,598,784
  5. Step 5: Solve for x
    x = 111,685,901,517,598,784/393,663,039.40
  6. Step 6: Final answer
    x = 283,709,391.89

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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.