Home / 117,012,236.01-161,216,883.67-77,248,948.56

Finding the Fourth Proportional to 117,012,236.01, 161,216,883.67 and 77,248,948.56

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Solution

The fourth proportional to 117,012,236.01, 161,216,883.67 and 77,248,948.56 is: 106,431,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,012,236.01 : 161,216,883.67 = 77,248,948.56 : x
  2. Step 2: Convert to fraction form
    117,012,236.01/161,216,883.67 = 77,248,948.56/x
  3. Step 3: Cross multiply
    117,012,236.01x = 161,216,883.67 × 77,248,948.56
  4. Step 4: Simplify right side
    117,012,236.01x = 12,453,834,753,627,334
  5. Step 5: Solve for x
    x = 12,453,834,753,627,334/117,012,236.01
  6. Step 6: Final answer
    x = 106,431,901.30

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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.