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Finding the Fourth Proportional to 639,047,313.12, 958,598,321.80 and 250,954,117.52

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Solution

The fourth proportional to 639,047,313.12, 958,598,321.80 and 250,954,117.52 is: 376,441,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,047,313.12 : 958,598,321.80 = 250,954,117.52 : x
  2. Step 2: Convert to fraction form
    639,047,313.12/958,598,321.80 = 250,954,117.52/x
  3. Step 3: Cross multiply
    639,047,313.12x = 958,598,321.80 × 250,954,117.52
  4. Step 4: Simplify right side
    639,047,313.12x = 240,564,195,903,471,968
  5. Step 5: Solve for x
    x = 240,564,195,903,471,968/639,047,313.12
  6. Step 6: Final answer
    x = 376,441,917.47

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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.