Home / 264,276,670.20-396,415,005.30-209,857,111.80

Finding the Fourth Proportional to 264,276,670.20, 396,415,005.30 and 209,857,111.80

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Solution

The fourth proportional to 264,276,670.20, 396,415,005.30 and 209,857,111.80 is: 314,785,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,276,670.20 : 396,415,005.30 = 209,857,111.80 : x
  2. Step 2: Convert to fraction form
    264,276,670.20/396,415,005.30 = 209,857,111.80/x
  3. Step 3: Cross multiply
    264,276,670.20x = 396,415,005.30 × 209,857,111.80
  4. Step 4: Simplify right side
    264,276,670.20x = 83,190,508,086,439,696
  5. Step 5: Solve for x
    x = 83,190,508,086,439,696/264,276,670.20
  6. Step 6: Final answer
    x = 314,785,667.70

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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.