Home / 775,989,138.76-1,070,705,153.95-445,900,504.84

Finding the Fourth Proportional to 775,989,138.76, 1,070,705,153.95 and 445,900,504.84

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Solution

The fourth proportional to 775,989,138.76, 1,070,705,153.95 and 445,900,504.84 is: 615,250,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,989,138.76 : 1,070,705,153.95 = 445,900,504.84 : x
  2. Step 2: Convert to fraction form
    775,989,138.76/1,070,705,153.95 = 445,900,504.84/x
  3. Step 3: Cross multiply
    775,989,138.76x = 1,070,705,153.95 × 445,900,504.84
  4. Step 4: Simplify right side
    775,989,138.76x = 477,427,968,681,094,912
  5. Step 5: Solve for x
    x = 477,427,968,681,094,912/775,989,138.76
  6. Step 6: Final answer
    x = 615,250,839.01

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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.