Home / 428,017,134.48-640,935,797.31-282,008,037.66

Finding the Fourth Proportional to 428,017,134.48, 640,935,797.31 and 282,008,037.66

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Solution

The fourth proportional to 428,017,134.48, 640,935,797.31 and 282,008,037.66 is: 422,293,950.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,017,134.48 : 640,935,797.31 = 282,008,037.66 : x
  2. Step 2: Convert to fraction form
    428,017,134.48/640,935,797.31 = 282,008,037.66/x
  3. Step 3: Cross multiply
    428,017,134.48x = 640,935,797.31 × 282,008,037.66
  4. Step 4: Simplify right side
    428,017,134.48x = 180,749,046,465,440,608
  5. Step 5: Solve for x
    x = 180,749,046,465,440,608/428,017,134.48
  6. Step 6: Final answer
    x = 422,293,950.18

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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.