Home / 168,057,783,980.10-231,919,048,539.18-90,895,709,901.60

Finding the Fourth Proportional to 168,057,783,980.10, 231,919,048,539.18 and 90,895,709,901.60

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Solution

The fourth proportional to 168,057,783,980.10, 231,919,048,539.18 and 90,895,709,901.60 is: 125,435,704,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057,783,980.10 : 231,919,048,539.18 = 90,895,709,901.60 : x
  2. Step 2: Convert to fraction form
    168,057,783,980.10/231,919,048,539.18 = 90,895,709,901.60/x
  3. Step 3: Cross multiply
    168,057,783,980.10x = 231,919,048,539.18 × 90,895,709,901.60
  4. Step 4: Simplify right side
    168,057,783,980.10x = 21,080,446,556,672,394,002,432
  5. Step 5: Solve for x
    x = 21,080,446,556,672,394,002,432/168,057,783,980.10
  6. Step 6: Final answer
    x = 125,435,704,657.21

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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.