Home / 89,129,379.08-133,704,057.90-79,975,209.32

Finding the Fourth Proportional to 89,129,379.08, 133,704,057.90 and 79,975,209.32

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Solution

The fourth proportional to 89,129,379.08, 133,704,057.90 and 79,975,209.32 is: 119,971,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,129,379.08 : 133,704,057.90 = 79,975,209.32 : x
  2. Step 2: Convert to fraction form
    89,129,379.08/133,704,057.90 = 79,975,209.32/x
  3. Step 3: Cross multiply
    89,129,379.08x = 133,704,057.90 × 79,975,209.32
  4. Step 4: Simplify right side
    89,129,379.08x = 10,693,010,017,485,900
  5. Step 5: Solve for x
    x = 10,693,010,017,485,900/89,129,379.08
  6. Step 6: Final answer
    x = 119,971,777.30

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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.