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Finding the Fourth Proportional to 54,978,824.88, 75,872,088.15 and 30,199,530.72

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Solution

The fourth proportional to 54,978,824.88, 75,872,088.15 and 30,199,530.72 is: 41,676,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,978,824.88 : 75,872,088.15 = 30,199,530.72 : x
  2. Step 2: Convert to fraction form
    54,978,824.88/75,872,088.15 = 30,199,530.72/x
  3. Step 3: Cross multiply
    54,978,824.88x = 75,872,088.15 × 30,199,530.72
  4. Step 4: Simplify right side
    54,978,824.88x = 2,291,301,456,876,473
  5. Step 5: Solve for x
    x = 2,291,301,456,876,473/54,978,824.88
  6. Step 6: Final answer
    x = 41,676,071.87

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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.