Home / 775,989,141.30-1,070,705,157.39-445,900,507.38

Finding the Fourth Proportional to 775,989,141.30, 1,070,705,157.39 and 445,900,507.38

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Solution

The fourth proportional to 775,989,141.30, 1,070,705,157.39 and 445,900,507.38 is: 615,250,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,989,141.30 : 1,070,705,157.39 = 445,900,507.38 : x
  2. Step 2: Convert to fraction form
    775,989,141.30/1,070,705,157.39 = 445,900,507.38/x
  3. Step 3: Cross multiply
    775,989,141.30x = 1,070,705,157.39 × 445,900,507.38
  4. Step 4: Simplify right side
    775,989,141.30x = 477,427,972,934,583,744
  5. Step 5: Solve for x
    x = 477,427,972,934,583,744/775,989,141.30
  6. Step 6: Final answer
    x = 615,250,842.47

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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.