Home / 485,960,989.56-670,625,732.26-274,312,369.64

Finding the Fourth Proportional to 485,960,989.56, 670,625,732.26 and 274,312,369.64

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Solution

The fourth proportional to 485,960,989.56, 670,625,732.26 and 274,312,369.64 is: 378,550,825.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,960,989.56 : 670,625,732.26 = 274,312,369.64 : x
  2. Step 2: Convert to fraction form
    485,960,989.56/670,625,732.26 = 274,312,369.64/x
  3. Step 3: Cross multiply
    485,960,989.56x = 670,625,732.26 × 274,312,369.64
  4. Step 4: Simplify right side
    485,960,989.56x = 183,960,933,757,800,768
  5. Step 5: Solve for x
    x = 183,960,933,757,800,768/485,960,989.56
  6. Step 6: Final answer
    x = 378,550,825.50

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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.