Home / 71,772,379.92-99,044,620.56-40,831,889.76

Finding the Fourth Proportional to 71,772,379.92, 99,044,620.56 and 40,831,889.76

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Solution

The fourth proportional to 71,772,379.92, 99,044,620.56 and 40,831,889.76 is: 56,347,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,772,379.92 : 99,044,620.56 = 40,831,889.76 : x
  2. Step 2: Convert to fraction form
    71,772,379.92/99,044,620.56 = 40,831,889.76/x
  3. Step 3: Cross multiply
    71,772,379.92x = 99,044,620.56 × 40,831,889.76
  4. Step 4: Simplify right side
    71,772,379.92x = 4,044,179,028,026,949.50
  5. Step 5: Solve for x
    x = 4,044,179,028,026,949.50/71,772,379.92
  6. Step 6: Final answer
    x = 56,347,288.92

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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.