Home / 399,379,936.80-599,069,905.20-195,039,098.40

Finding the Fourth Proportional to 399,379,936.80, 599,069,905.20 and 195,039,098.40

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Solution

The fourth proportional to 399,379,936.80, 599,069,905.20 and 195,039,098.40 is: 292,558,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,379,936.80 : 599,069,905.20 = 195,039,098.40 : x
  2. Step 2: Convert to fraction form
    399,379,936.80/599,069,905.20 = 195,039,098.40/x
  3. Step 3: Cross multiply
    399,379,936.80x = 599,069,905.20 × 195,039,098.40
  4. Step 4: Simplify right side
    399,379,936.80x = 116,842,054,188,781,488
  5. Step 5: Solve for x
    x = 116,842,054,188,781,488/399,379,936.80
  6. Step 6: Final answer
    x = 292,558,647.60

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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.