Home / 1,085,707,825.20-1,628,561,737.80-626,542,801.20

Finding the Fourth Proportional to 1,085,707,825.20, 1,628,561,737.80 and 626,542,801.20

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Solution

The fourth proportional to 1,085,707,825.20, 1,628,561,737.80 and 626,542,801.20 is: 939,814,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,707,825.20 : 1,628,561,737.80 = 626,542,801.20 : x
  2. Step 2: Convert to fraction form
    1,085,707,825.20/1,628,561,737.80 = 626,542,801.20/x
  3. Step 3: Cross multiply
    1,085,707,825.20x = 1,628,561,737.80 × 626,542,801.20
  4. Step 4: Simplify right side
    1,085,707,825.20x = 1,020,363,633,128,352,000
  5. Step 5: Solve for x
    x = 1,020,363,633,128,352,000/1,085,707,825.20
  6. Step 6: Final answer
    x = 939,814,201.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.