Home / 89,423,999.10-134,135,998.65-76,669,415.10

Finding the Fourth Proportional to 89,423,999.10, 134,135,998.65 and 76,669,415.10

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Solution

The fourth proportional to 89,423,999.10, 134,135,998.65 and 76,669,415.10 is: 115,004,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,423,999.10 : 134,135,998.65 = 76,669,415.10 : x
  2. Step 2: Convert to fraction form
    89,423,999.10/134,135,998.65 = 76,669,415.10/x
  3. Step 3: Cross multiply
    89,423,999.10x = 134,135,998.65 × 76,669,415.10
  4. Step 4: Simplify right side
    89,423,999.10x = 10,284,128,560,349,890
  5. Step 5: Solve for x
    x = 10,284,128,560,349,890/89,423,999.10
  6. Step 6: Final answer
    x = 115,004,122.65

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Similar ratio
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1.5x scale

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.