Home / 809,856,029.80-1,214,784,044.70-534,357,015.40

Finding the Fourth Proportional to 809,856,029.80, 1,214,784,044.70 and 534,357,015.40

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Solution

The fourth proportional to 809,856,029.80, 1,214,784,044.70 and 534,357,015.40 is: 801,535,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,856,029.80 : 1,214,784,044.70 = 534,357,015.40 : x
  2. Step 2: Convert to fraction form
    809,856,029.80/1,214,784,044.70 = 534,357,015.40/x
  3. Step 3: Cross multiply
    809,856,029.80x = 1,214,784,044.70 × 534,357,015.40
  4. Step 4: Simplify right side
    809,856,029.80x = 649,128,376,481,432,192
  5. Step 5: Solve for x
    x = 649,128,376,481,432,192/809,856,029.80
  6. Step 6: Final answer
    x = 801,535,523.10

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Double scale
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Similar ratio
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1.5x scale

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.