Home / 117,012,235.01-161,216,882.30-77,248,947.56

Finding the Fourth Proportional to 117,012,235.01, 161,216,882.30 and 77,248,947.56

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Solution

The fourth proportional to 117,012,235.01, 161,216,882.30 and 77,248,947.56 is: 106,431,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,012,235.01 : 161,216,882.30 = 77,248,947.56 : x
  2. Step 2: Convert to fraction form
    117,012,235.01/161,216,882.30 = 77,248,947.56/x
  3. Step 3: Cross multiply
    117,012,235.01x = 161,216,882.30 × 77,248,947.56
  4. Step 4: Simplify right side
    117,012,235.01x = 12,453,834,486,193,146
  5. Step 5: Solve for x
    x = 12,453,834,486,193,146/117,012,235.01
  6. Step 6: Final answer
    x = 106,431,899.92

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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.