Home / 85,042,933-117,395,524.20-57,181,792.30

Finding the Fourth Proportional to 85,042,933, 117,395,524.20 and 57,181,792.30

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Solution

The fourth proportional to 85,042,933, 117,395,524.20 and 57,181,792.30 is: 78,935,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,042,933 : 117,395,524.20 = 57,181,792.30 : x
  2. Step 2: Convert to fraction form
    85,042,933/117,395,524.20 = 57,181,792.30/x
  3. Step 3: Cross multiply
    85,042,933x = 117,395,524.20 × 57,181,792.30
  4. Step 4: Simplify right side
    85,042,933x = 6,712,886,481,754,023
  5. Step 5: Solve for x
    x = 6,712,886,481,754,023/85,042,933
  6. Step 6: Final answer
    x = 78,935,265.34

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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.