Home / 117,115,456.84-161,417,599.37-77,887,139.42

Finding the Fourth Proportional to 117,115,456.84, 161,417,599.37 and 77,887,139.42

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Solution

The fourth proportional to 117,115,456.84, 161,417,599.37 and 77,887,139.42 is: 107,350,092.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115,456.84 : 161,417,599.37 = 77,887,139.42 : x
  2. Step 2: Convert to fraction form
    117,115,456.84/161,417,599.37 = 77,887,139.42/x
  3. Step 3: Cross multiply
    117,115,456.84x = 161,417,599.37 × 77,887,139.42
  4. Step 4: Simplify right side
    117,115,456.84x = 12,572,355,067,279,080
  5. Step 5: Solve for x
    x = 12,572,355,067,279,080/117,115,456.84
  6. Step 6: Final answer
    x = 107,350,092.01

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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.