Home / 455,785,900.41-628,791,938.42-305,127,093.35

Finding the Fourth Proportional to 455,785,900.41, 628,791,938.42 and 305,127,093.35

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Solution

The fourth proportional to 455,785,900.41, 628,791,938.42 and 305,127,093.35 is: 420,946,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,785,900.41 : 628,791,938.42 = 305,127,093.35 : x
  2. Step 2: Convert to fraction form
    455,785,900.41/628,791,938.42 = 305,127,093.35/x
  3. Step 3: Cross multiply
    455,785,900.41x = 628,791,938.42 × 305,127,093.35
  4. Step 4: Simplify right side
    455,785,900.41x = 191,861,456,487,337,216
  5. Step 5: Solve for x
    x = 191,861,456,487,337,216/455,785,900.41
  6. Step 6: Final answer
    x = 420,946,449.45

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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.