Home / 775,989,261.28-1,070,705,322.72-445,900,627.36

Finding the Fourth Proportional to 775,989,261.28, 1,070,705,322.72 and 445,900,627.36

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Solution

The fourth proportional to 775,989,261.28, 1,070,705,322.72 and 445,900,627.36 is: 615,251,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,989,261.28 : 1,070,705,322.72 = 445,900,627.36 : x
  2. Step 2: Convert to fraction form
    775,989,261.28/1,070,705,322.72 = 445,900,627.36/x
  3. Step 3: Cross multiply
    775,989,261.28x = 1,070,705,322.72 × 445,900,627.36
  4. Step 4: Simplify right side
    775,989,261.28x = 477,428,175,118,539,264
  5. Step 5: Solve for x
    x = 477,428,175,118,539,264/775,989,261.28
  6. Step 6: Final answer
    x = 615,251,007.90

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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.