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Finding the Fourth Proportional to 54,881,978.63, 75,737,238.77 and 30,102,367.17

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Solution

The fourth proportional to 54,881,978.63, 75,737,238.77 and 30,102,367.17 is: 41,541,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,881,978.63 : 75,737,238.77 = 30,102,367.17 : x
  2. Step 2: Convert to fraction form
    54,881,978.63/75,737,238.77 = 30,102,367.17/x
  3. Step 3: Cross multiply
    54,881,978.63x = 75,737,238.77 × 30,102,367.17
  4. Step 4: Simplify right side
    54,881,978.63x = 2,279,870,169,745,987.50
  5. Step 5: Solve for x
    x = 2,279,870,169,745,987.50/54,881,978.63
  6. Step 6: Final answer
    x = 41,541,326.08

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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.