Home / 272,804,791.20-409,207,186.80-163,965,674.40

Finding the Fourth Proportional to 272,804,791.20, 409,207,186.80 and 163,965,674.40

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Solution

The fourth proportional to 272,804,791.20, 409,207,186.80 and 163,965,674.40 is: 245,948,511.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,804,791.20 : 409,207,186.80 = 163,965,674.40 : x
  2. Step 2: Convert to fraction form
    272,804,791.20/409,207,186.80 = 163,965,674.40/x
  3. Step 3: Cross multiply
    272,804,791.20x = 409,207,186.80 × 163,965,674.40
  4. Step 4: Simplify right side
    272,804,791.20x = 67,095,932,352,988,784
  5. Step 5: Solve for x
    x = 67,095,932,352,988,784/272,804,791.20
  6. Step 6: Final answer
    x = 245,948,511.60

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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.