Home / 85,188,519-127,731,631.86-39,072,620.52

Finding the Fourth Proportional to 85,188,519, 127,731,631.86 and 39,072,620.52

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Solution

The fourth proportional to 85,188,519, 127,731,631.86 and 39,072,620.52 is: 58,585,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,188,519 : 127,731,631.86 = 39,072,620.52 : x
  2. Step 2: Convert to fraction form
    85,188,519/127,731,631.86 = 39,072,620.52/x
  3. Step 3: Cross multiply
    85,188,519x = 127,731,631.86 × 39,072,620.52
  4. Step 4: Simplify right side
    85,188,519x = 4,990,809,580,066,122
  5. Step 5: Solve for x
    x = 4,990,809,580,066,122/85,188,519
  6. Step 6: Final answer
    x = 58,585,471.83

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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.