Home / 15,519,739.87-21,417,246.88-8,997,150.38

Finding the Fourth Proportional to 15,519,739.87, 21,417,246.88 and 8,997,150.38

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Solution

The fourth proportional to 15,519,739.87, 21,417,246.88 and 8,997,150.38 is: 12,416,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519,739.87 : 21,417,246.88 = 8,997,150.38 : x
  2. Step 2: Convert to fraction form
    15,519,739.87/21,417,246.88 = 8,997,150.38/x
  3. Step 3: Cross multiply
    15,519,739.87x = 21,417,246.88 × 8,997,150.38
  4. Step 4: Simplify right side
    15,519,739.87x = 192,694,190,775,366.72
  5. Step 5: Solve for x
    x = 192,694,190,775,366.72/15,519,739.87
  6. Step 6: Final answer
    x = 12,416,070.91

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1.5x scale

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.