Home / 77,081,972.44-106,379,849.12-42,281,388.91

Finding the Fourth Proportional to 77,081,972.44, 106,379,849.12 and 42,281,388.91

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Solution

The fourth proportional to 77,081,972.44, 106,379,849.12 and 42,281,388.91 is: 58,352,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,081,972.44 : 106,379,849.12 = 42,281,388.91 : x
  2. Step 2: Convert to fraction form
    77,081,972.44/106,379,849.12 = 42,281,388.91/x
  3. Step 3: Cross multiply
    77,081,972.44x = 106,379,849.12 × 42,281,388.91
  4. Step 4: Simplify right side
    77,081,972.44x = 4,497,887,772,390,644
  5. Step 5: Solve for x
    x = 4,497,887,772,390,644/77,081,972.44
  6. Step 6: Final answer
    x = 58,352,006.70

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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.