Home / 85,468,625.56-128,331,009.18-73,989,499.96

Finding the Fourth Proportional to 85,468,625.56, 128,331,009.18 and 73,989,499.96

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Solution

The fourth proportional to 85,468,625.56, 128,331,009.18 and 73,989,499.96 is: 111,095,119.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,468,625.56 : 128,331,009.18 = 73,989,499.96 : x
  2. Step 2: Convert to fraction form
    85,468,625.56/128,331,009.18 = 73,989,499.96/x
  3. Step 3: Cross multiply
    85,468,625.56x = 128,331,009.18 × 73,989,499.96
  4. Step 4: Simplify right side
    85,468,625.56x = 9,495,147,198,590,370
  5. Step 5: Solve for x
    x = 9,495,147,198,590,370/85,468,625.56
  6. Step 6: Final answer
    x = 111,095,119.83

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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.