Home / 205,902,309.21-308,853,216-52,548,382.05

Finding the Fourth Proportional to 205,902,309.21, 308,853,216 and 52,548,382.05

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Solution

The fourth proportional to 205,902,309.21, 308,853,216 and 52,548,382.05 is: 78,822,509.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,902,309.21 : 308,853,216 = 52,548,382.05 : x
  2. Step 2: Convert to fraction form
    205,902,309.21/308,853,216 = 52,548,382.05/x
  3. Step 3: Cross multiply
    205,902,309.21x = 308,853,216 × 52,548,382.05
  4. Step 4: Simplify right side
    205,902,309.21x = 16,229,736,791,739,172
  5. Step 5: Solve for x
    x = 16,229,736,791,739,172/205,902,309.21
  6. Step 6: Final answer
    x = 78,822,509.83

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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.