Home / 5,384,977.20-8,077,465.80-5,172,400.80

Finding the Fourth Proportional to 5,384,977.20, 8,077,465.80 and 5,172,400.80

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Solution

The fourth proportional to 5,384,977.20, 8,077,465.80 and 5,172,400.80 is: 7,758,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384,977.20 : 8,077,465.80 = 5,172,400.80 : x
  2. Step 2: Convert to fraction form
    5,384,977.20/8,077,465.80 = 5,172,400.80/x
  3. Step 3: Cross multiply
    5,384,977.20x = 8,077,465.80 × 5,172,400.80
  4. Step 4: Simplify right side
    5,384,977.20x = 41,779,890,565,892.64
  5. Step 5: Solve for x
    x = 41,779,890,565,892.64/5,384,977.20
  6. Step 6: Final answer
    x = 7,758,601.20

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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.