Home / 31,478,886.15-43,440,951.30-18,250,633.77

Finding the Fourth Proportional to 31,478,886.15, 43,440,951.30 and 18,250,633.77

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Solution

The fourth proportional to 31,478,886.15, 43,440,951.30 and 18,250,633.77 is: 25,185,925.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478,886.15 : 43,440,951.30 = 18,250,633.77 : x
  2. Step 2: Convert to fraction form
    31,478,886.15/43,440,951.30 = 18,250,633.77/x
  3. Step 3: Cross multiply
    31,478,886.15x = 43,440,951.30 × 18,250,633.77
  4. Step 4: Simplify right side
    31,478,886.15x = 792,824,892,796,705.38
  5. Step 5: Solve for x
    x = 792,824,892,796,705.38/31,478,886.15
  6. Step 6: Final answer
    x = 25,185,925.86

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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.