Home / 89,128,181.08-123,018,769.50-54,340,053.22

Finding the Fourth Proportional to 89,128,181.08, 123,018,769.50 and 54,340,053.22

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Solution

The fourth proportional to 89,128,181.08, 123,018,769.50 and 54,340,053.22 is: 75,002,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,128,181.08 : 123,018,769.50 = 54,340,053.22 : x
  2. Step 2: Convert to fraction form
    89,128,181.08/123,018,769.50 = 54,340,053.22/x
  3. Step 3: Cross multiply
    89,128,181.08x = 123,018,769.50 × 54,340,053.22
  4. Step 4: Simplify right side
    89,128,181.08x = 6,684,846,481,688,913
  5. Step 5: Solve for x
    x = 6,684,846,481,688,913/89,128,181.08
  6. Step 6: Final answer
    x = 75,002,613.10

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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.