Home / 1,216,721,494.62-1,679,076,110.16-659,804,394.06

Finding the Fourth Proportional to 1,216,721,494.62, 1,679,076,110.16 and 659,804,394.06

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Solution

The fourth proportional to 1,216,721,494.62, 1,679,076,110.16 and 659,804,394.06 is: 910,530,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,721,494.62 : 1,679,076,110.16 = 659,804,394.06 : x
  2. Step 2: Convert to fraction form
    1,216,721,494.62/1,679,076,110.16 = 659,804,394.06/x
  3. Step 3: Cross multiply
    1,216,721,494.62x = 1,679,076,110.16 × 659,804,394.06
  4. Step 4: Simplify right side
    1,216,721,494.62x = 1,107,861,795,444,740,608
  5. Step 5: Solve for x
    x = 1,107,861,795,444,740,608/1,216,721,494.62
  6. Step 6: Final answer
    x = 910,530,306.52

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Double scale
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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.