Home / 1,189,486,596.86-1,641,395,268-687,727,573.16

Finding the Fourth Proportional to 1,189,486,596.86, 1,641,395,268 and 687,727,573.16

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Solution

The fourth proportional to 1,189,486,596.86, 1,641,395,268 and 687,727,573.16 is: 949,008,410.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,486,596.86 : 1,641,395,268 = 687,727,573.16 : x
  2. Step 2: Convert to fraction form
    1,189,486,596.86/1,641,395,268 = 687,727,573.16/x
  3. Step 3: Cross multiply
    1,189,486,596.86x = 1,641,395,268 × 687,727,573.16
  4. Step 4: Simplify right side
    1,189,486,596.86x = 1,128,832,784,249,740,800
  5. Step 5: Solve for x
    x = 1,128,832,784,249,740,800/1,189,486,596.86
  6. Step 6: Final answer
    x = 949,008,410.21

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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.