Home / 1,314,843,417.57-1,814,540,953.21-728,132,553.57

Finding the Fourth Proportional to 1,314,843,417.57, 1,814,540,953.21 and 728,132,553.57

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Solution

The fourth proportional to 1,314,843,417.57, 1,814,540,953.21 and 728,132,553.57 is: 1,004,854,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,843,417.57 : 1,814,540,953.21 = 728,132,553.57 : x
  2. Step 2: Convert to fraction form
    1,314,843,417.57/1,814,540,953.21 = 728,132,553.57/x
  3. Step 3: Cross multiply
    1,314,843,417.57x = 1,814,540,953.21 × 728,132,553.57
  4. Step 4: Simplify right side
    1,314,843,417.57x = 1,321,226,337,814,498,560
  5. Step 5: Solve for x
    x = 1,321,226,337,814,498,560/1,314,843,417.57
  6. Step 6: Final answer
    x = 1,004,854,509.79

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Double scale
Find fourth proportional to 1,314,843,418.57, 1,814,540,954.59 and 728,132,554.57
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1.5x scale

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.