Home / 81,490,181.70-122,235,272.55-49,125,424.80

Finding the Fourth Proportional to 81,490,181.70, 122,235,272.55 and 49,125,424.80

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Solution

The fourth proportional to 81,490,181.70, 122,235,272.55 and 49,125,424.80 is: 73,688,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490,181.70 : 122,235,272.55 = 49,125,424.80 : x
  2. Step 2: Convert to fraction form
    81,490,181.70/122,235,272.55 = 49,125,424.80/x
  3. Step 3: Cross multiply
    81,490,181.70x = 122,235,272.55 × 49,125,424.80
  4. Step 4: Simplify right side
    81,490,181.70x = 6,004,859,689,562,529
  5. Step 5: Solve for x
    x = 6,004,859,689,562,529/81,490,181.70
  6. Step 6: Final answer
    x = 73,688,137.20

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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.