Home / 775,989,134.75-1,070,705,148.42-445,900,500.83

Finding the Fourth Proportional to 775,989,134.75, 1,070,705,148.42 and 445,900,500.83

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Solution

The fourth proportional to 775,989,134.75, 1,070,705,148.42 and 445,900,500.83 is: 615,250,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,989,134.75 : 1,070,705,148.42 = 445,900,500.83 : x
  2. Step 2: Convert to fraction form
    775,989,134.75/1,070,705,148.42 = 445,900,500.83/x
  3. Step 3: Cross multiply
    775,989,134.75x = 1,070,705,148.42 × 445,900,500.83
  4. Step 4: Simplify right side
    775,989,134.75x = 477,427,961,916,383,936
  5. Step 5: Solve for x
    x = 477,427,961,916,383,936/775,989,134.75
  6. Step 6: Final answer
    x = 615,250,833.47

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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.