Home / 851,330,815.71-1,276,383,350.19-523,128,243.75

Finding the Fourth Proportional to 851,330,815.71, 1,276,383,350.19 and 523,128,243.75

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Solution

The fourth proportional to 851,330,815.71, 1,276,383,350.19 and 523,128,243.75 is: 784,315,765.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,330,815.71 : 1,276,383,350.19 = 523,128,243.75 : x
  2. Step 2: Convert to fraction form
    851,330,815.71/1,276,383,350.19 = 523,128,243.75/x
  3. Step 3: Cross multiply
    851,330,815.71x = 1,276,383,350.19 × 523,128,243.75
  4. Step 4: Simplify right side
    851,330,815.71x = 667,712,180,341,641,088
  5. Step 5: Solve for x
    x = 667,712,180,341,641,088/851,330,815.71
  6. Step 6: Final answer
    x = 784,315,765.41

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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.