Home / 939,242,540.78-1,296,014,104.19-537,292,381.94

Finding the Fourth Proportional to 939,242,540.78, 1,296,014,104.19 and 537,292,381.94

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Solution

The fourth proportional to 939,242,540.78, 1,296,014,104.19 and 537,292,381.94 is: 741,383,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,242,540.78 : 1,296,014,104.19 = 537,292,381.94 : x
  2. Step 2: Convert to fraction form
    939,242,540.78/1,296,014,104.19 = 537,292,381.94/x
  3. Step 3: Cross multiply
    939,242,540.78x = 1,296,014,104.19 × 537,292,381.94
  4. Step 4: Simplify right side
    939,242,540.78x = 696,338,505,068,080,512
  5. Step 5: Solve for x
    x = 696,338,505,068,080,512/939,242,540.78
  6. Step 6: Final answer
    x = 741,383,055.85

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Half scale
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Double scale
Find fourth proportional to 939,242,541.78, 1,296,014,105.57 and 537,292,382.94
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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.