Home / 1,893,315,809.40-2,838,630,021.30-728,334,151.80

Finding the Fourth Proportional to 1,893,315,809.40, 2,838,630,021.30 and 728,334,151.80

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Solution

The fourth proportional to 1,893,315,809.40, 2,838,630,021.30 and 728,334,151.80 is: 1,091,984,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893,315,809.40 : 2,838,630,021.30 = 728,334,151.80 : x
  2. Step 2: Convert to fraction form
    1,893,315,809.40/2,838,630,021.30 = 728,334,151.80/x
  3. Step 3: Cross multiply
    1,893,315,809.40x = 2,838,630,021.30 × 728,334,151.80
  4. Step 4: Simplify right side
    1,893,315,809.40x = 2,067,471,188,837,551,360
  5. Step 5: Solve for x
    x = 2,067,471,188,837,551,360/1,893,315,809.40
  6. Step 6: Final answer
    x = 1,091,984,326.43

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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.