Home / 428,341,633.92-590,893,897.94-279,749,733.87

Finding the Fourth Proportional to 428,341,633.92, 590,893,897.94 and 279,749,733.87

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Solution

The fourth proportional to 428,341,633.92, 590,893,897.94 and 279,749,733.87 is: 385,912,546.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,341,633.92 : 590,893,897.94 = 279,749,733.87 : x
  2. Step 2: Convert to fraction form
    428,341,633.92/590,893,897.94 = 279,749,733.87/x
  3. Step 3: Cross multiply
    428,341,633.92x = 590,893,897.94 × 279,749,733.87
  4. Step 4: Simplify right side
    428,341,633.92x = 165,302,410,692,723,168
  5. Step 5: Solve for x
    x = 165,302,410,692,723,168/428,341,633.92
  6. Step 6: Final answer
    x = 385,912,546.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.