Home / 81,427,705.30-122,159,272.65-26,830,999.90

Finding the Fourth Proportional to 81,427,705.30, 122,159,272.65 and 26,830,999.90

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Solution

The fourth proportional to 81,427,705.30, 122,159,272.65 and 26,830,999.90 is: 40,252,336.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427,705.30 : 122,159,272.65 = 26,830,999.90 : x
  2. Step 2: Convert to fraction form
    81,427,705.30/122,159,272.65 = 26,830,999.90/x
  3. Step 3: Cross multiply
    81,427,705.30x = 122,159,272.65 × 26,830,999.90
  4. Step 4: Simplify right side
    81,427,705.30x = 3,277,655,432,256,222.50
  5. Step 5: Solve for x
    x = 3,277,655,432,256,222.50/81,427,705.30
  6. Step 6: Final answer
    x = 40,252,336.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.