Home / 149,063,074.67-205,713,832.14-82,987,769.57

Finding the Fourth Proportional to 149,063,074.67, 205,713,832.14 and 82,987,769.57

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Solution

The fourth proportional to 149,063,074.67, 205,713,832.14 and 82,987,769.57 is: 114,526,901.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,063,074.67 : 205,713,832.14 = 82,987,769.57 : x
  2. Step 2: Convert to fraction form
    149,063,074.67/205,713,832.14 = 82,987,769.57/x
  3. Step 3: Cross multiply
    149,063,074.67x = 205,713,832.14 × 82,987,769.57
  4. Step 4: Simplify right side
    149,063,074.67x = 17,071,732,097,967,410
  5. Step 5: Solve for x
    x = 17,071,732,097,967,410/149,063,074.67
  6. Step 6: Final answer
    x = 114,526,901.69

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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.