Home / 775,989,317.28-1,070,705,399.88-445,900,683.36

Finding the Fourth Proportional to 775,989,317.28, 1,070,705,399.88 and 445,900,683.36

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Solution

The fourth proportional to 775,989,317.28, 1,070,705,399.88 and 445,900,683.36 is: 615,251,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,989,317.28 : 1,070,705,399.88 = 445,900,683.36 : x
  2. Step 2: Convert to fraction form
    775,989,317.28/1,070,705,399.88 = 445,900,683.36/x
  3. Step 3: Cross multiply
    775,989,317.28x = 1,070,705,399.88 × 445,900,683.36
  4. Step 4: Simplify right side
    775,989,317.28x = 477,428,269,483,734,080
  5. Step 5: Solve for x
    x = 477,428,269,483,734,080/775,989,317.28
  6. Step 6: Final answer
    x = 615,251,085.10

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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.