Home / 1,252,387,452.96-1,728,315,500.81-687,924,528.48

Finding the Fourth Proportional to 1,252,387,452.96, 1,728,315,500.81 and 687,924,528.48

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Solution

The fourth proportional to 1,252,387,452.96, 1,728,315,500.81 and 687,924,528.48 is: 949,347,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,387,452.96 : 1,728,315,500.81 = 687,924,528.48 : x
  2. Step 2: Convert to fraction form
    1,252,387,452.96/1,728,315,500.81 = 687,924,528.48/x
  3. Step 3: Cross multiply
    1,252,387,452.96x = 1,728,315,500.81 × 687,924,528.48
  4. Step 4: Simplify right side
    1,252,387,452.96x = 1,188,950,625,955,954,688
  5. Step 5: Solve for x
    x = 1,188,950,625,955,954,688/1,252,387,452.96
  6. Step 6: Final answer
    x = 949,347,283.18

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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.