Home / 1,117,145,200.51-1,541,603,399.70-615,343,181.86

Finding the Fourth Proportional to 1,117,145,200.51, 1,541,603,399.70 and 615,343,181.86

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Solution

The fourth proportional to 1,117,145,200.51, 1,541,603,399.70 and 615,343,181.86 is: 849,142,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,145,200.51 : 1,541,603,399.70 = 615,343,181.86 : x
  2. Step 2: Convert to fraction form
    1,117,145,200.51/1,541,603,399.70 = 615,343,181.86/x
  3. Step 3: Cross multiply
    1,117,145,200.51x = 1,541,603,399.70 × 615,343,181.86
  4. Step 4: Simplify right side
    1,117,145,200.51x = 948,615,141,137,591,424
  5. Step 5: Solve for x
    x = 948,615,141,137,591,424/1,117,145,200.51
  6. Step 6: Final answer
    x = 849,142,207.03

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Double scale
Find fourth proportional to 1,117,145,201.51, 1,541,603,401.08 and 615,343,182.86
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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.