Home / 1,231,394,908.96-1,699,347,054.90-674,442,083.80

Finding the Fourth Proportional to 1,231,394,908.96, 1,699,347,054.90 and 674,442,083.80

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Solution

The fourth proportional to 1,231,394,908.96, 1,699,347,054.90 and 674,442,083.80 is: 930,742,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,394,908.96 : 1,699,347,054.90 = 674,442,083.80 : x
  2. Step 2: Convert to fraction form
    1,231,394,908.96/1,699,347,054.90 = 674,442,083.80/x
  3. Step 3: Cross multiply
    1,231,394,908.96x = 1,699,347,054.90 × 674,442,083.80
  4. Step 4: Simplify right side
    1,231,394,908.96x = 1,146,111,168,806,148,992
  5. Step 5: Solve for x
    x = 1,146,111,168,806,148,992/1,231,394,908.96
  6. Step 6: Final answer
    x = 930,742,169.28

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Double scale
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1.5x scale

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.