Home / 728,710,268.80-1,093,065,403.20-211,157,593.60

Finding the Fourth Proportional to 728,710,268.80, 1,093,065,403.20 and 211,157,593.60

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Solution

The fourth proportional to 728,710,268.80, 1,093,065,403.20 and 211,157,593.60 is: 316,736,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,710,268.80 : 1,093,065,403.20 = 211,157,593.60 : x
  2. Step 2: Convert to fraction form
    728,710,268.80/1,093,065,403.20 = 211,157,593.60/x
  3. Step 3: Cross multiply
    728,710,268.80x = 1,093,065,403.20 × 211,157,593.60
  4. Step 4: Simplify right side
    728,710,268.80x = 230,809,060,187,125,728
  5. Step 5: Solve for x
    x = 230,809,060,187,125,728/728,710,268.80
  6. Step 6: Final answer
    x = 316,736,390.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.