Home / 1,228,504,727.20-1,686,312,319.40-1,086,157,271.20

Finding the Fourth Proportional to 1,228,504,727.20, 1,686,312,319.40 and 1,086,157,271.20

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Solution

The fourth proportional to 1,228,504,727.20, 1,686,312,319.40 and 1,086,157,271.20 is: 1,490,918,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,504,727.20 : 1,686,312,319.40 = 1,086,157,271.20 : x
  2. Step 2: Convert to fraction form
    1,228,504,727.20/1,686,312,319.40 = 1,086,157,271.20/x
  3. Step 3: Cross multiply
    1,228,504,727.20x = 1,686,312,319.40 × 1,086,157,271.20
  4. Step 4: Simplify right side
    1,228,504,727.20x = 1,831,600,387,230,447,104
  5. Step 5: Solve for x
    x = 1,831,600,387,230,447,104/1,228,504,727.20
  6. Step 6: Final answer
    x = 1,490,918,469.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.