Home / 648,659,247.45-895,145,325.15-351,294,650.79

Finding the Fourth Proportional to 648,659,247.45, 895,145,325.15 and 351,294,650.79

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Solution

The fourth proportional to 648,659,247.45, 895,145,325.15 and 351,294,650.79 is: 484,784,215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,659,247.45 : 895,145,325.15 = 351,294,650.79 : x
  2. Step 2: Convert to fraction form
    648,659,247.45/895,145,325.15 = 351,294,650.79/x
  3. Step 3: Cross multiply
    648,659,247.45x = 895,145,325.15 × 351,294,650.79
  4. Step 4: Simplify right side
    648,659,247.45x = 314,459,764,404,870,272
  5. Step 5: Solve for x
    x = 314,459,764,404,870,272/648,659,247.45
  6. Step 6: Final answer
    x = 484,784,215.50

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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.