Home / 56,892,979.72-78,511,713.78-30,786,925.96

Finding the Fourth Proportional to 56,892,979.72, 78,511,713.78 and 30,786,925.96

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Solution

The fourth proportional to 56,892,979.72, 78,511,713.78 and 30,786,925.96 is: 42,485,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,892,979.72 : 78,511,713.78 = 30,786,925.96 : x
  2. Step 2: Convert to fraction form
    56,892,979.72/78,511,713.78 = 30,786,925.96/x
  3. Step 3: Cross multiply
    56,892,979.72x = 78,511,713.78 × 30,786,925.96
  4. Step 4: Simplify right side
    56,892,979.72x = 2,417,134,319,137,572
  5. Step 5: Solve for x
    x = 2,417,134,319,137,572/56,892,979.72
  6. Step 6: Final answer
    x = 42,485,634.10

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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.