Home / 809,856,856.80-1,214,785,285.20-534,357,842.40

Finding the Fourth Proportional to 809,856,856.80, 1,214,785,285.20 and 534,357,842.40

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Solution

The fourth proportional to 809,856,856.80, 1,214,785,285.20 and 534,357,842.40 is: 801,536,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,856,856.80 : 1,214,785,285.20 = 534,357,842.40 : x
  2. Step 2: Convert to fraction form
    809,856,856.80/1,214,785,285.20 = 534,357,842.40/x
  3. Step 3: Cross multiply
    809,856,856.80x = 1,214,785,285.20 × 534,357,842.40
  4. Step 4: Simplify right side
    809,856,856.80x = 649,130,043,978,740,608
  5. Step 5: Solve for x
    x = 649,130,043,978,740,608/809,856,856.80
  6. Step 6: Final answer
    x = 801,536,763.60

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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.