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Finding the Fourth Proportional to 272,804,744.70, 409,207,117.05 and 163,965,627.90

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Solution

The fourth proportional to 272,804,744.70, 409,207,117.05 and 163,965,627.90 is: 245,948,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,804,744.70 : 409,207,117.05 = 163,965,627.90 : x
  2. Step 2: Convert to fraction form
    272,804,744.70/409,207,117.05 = 163,965,627.90/x
  3. Step 3: Cross multiply
    272,804,744.70x = 409,207,117.05 × 163,965,627.90
  4. Step 4: Simplify right side
    272,804,744.70x = 67,095,901,888,252,048
  5. Step 5: Solve for x
    x = 67,095,901,888,252,048/272,804,744.70
  6. Step 6: Final answer
    x = 245,948,441.85

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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.