Home / 1,231,394,909.96-1,699,347,056.28-674,442,084.80

Finding the Fourth Proportional to 1,231,394,909.96, 1,699,347,056.28 and 674,442,084.80

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Solution

The fourth proportional to 1,231,394,909.96, 1,699,347,056.28 and 674,442,084.80 is: 930,742,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,394,909.96 : 1,699,347,056.28 = 674,442,084.80 : x
  2. Step 2: Convert to fraction form
    1,231,394,909.96/1,699,347,056.28 = 674,442,084.80/x
  3. Step 3: Cross multiply
    1,231,394,909.96x = 1,699,347,056.28 × 674,442,084.80
  4. Step 4: Simplify right side
    1,231,394,909.96x = 1,146,111,171,436,226,048
  5. Step 5: Solve for x
    x = 1,146,111,171,436,226,048/1,231,394,909.96
  6. Step 6: Final answer
    x = 930,742,170.66

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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.