Home / 92,891,100.54-128,193,009-51,078,350.54

Finding the Fourth Proportional to 92,891,100.54, 128,193,009 and 51,078,350.54

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Solution

The fourth proportional to 92,891,100.54, 128,193,009 and 51,078,350.54 is: 70,489,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,891,100.54 : 128,193,009 = 51,078,350.54 : x
  2. Step 2: Convert to fraction form
    92,891,100.54/128,193,009 = 51,078,350.54/x
  3. Step 3: Cross multiply
    92,891,100.54x = 128,193,009 × 51,078,350.54
  4. Step 4: Simplify right side
    92,891,100.54x = 6,547,887,450,479,375
  5. Step 5: Solve for x
    x = 6,547,887,450,479,375/92,891,100.54
  6. Step 6: Final answer
    x = 70,489,932.97

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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.