Home / 79,788,064.77-119,682,129.96-19,203,790.77

Finding the Fourth Proportional to 79,788,064.77, 119,682,129.96 and 19,203,790.77

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Solution

The fourth proportional to 79,788,064.77, 119,682,129.96 and 19,203,790.77 is: 28,805,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,788,064.77 : 119,682,129.96 = 19,203,790.77 : x
  2. Step 2: Convert to fraction form
    79,788,064.77/119,682,129.96 = 19,203,790.77/x
  3. Step 3: Cross multiply
    79,788,064.77x = 119,682,129.96 × 19,203,790.77
  4. Step 4: Simplify right side
    79,788,064.77x = 2,298,350,582,659,788.50
  5. Step 5: Solve for x
    x = 2,298,350,582,659,788.50/79,788,064.77
  6. Step 6: Final answer
    x = 28,805,694.05

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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.