Home / 28,796,523.10-43,194,784.65-21,143,772.70

Finding the Fourth Proportional to 28,796,523.10, 43,194,784.65 and 21,143,772.70

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Solution

The fourth proportional to 28,796,523.10, 43,194,784.65 and 21,143,772.70 is: 31,715,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796,523.10 : 43,194,784.65 = 21,143,772.70 : x
  2. Step 2: Convert to fraction form
    28,796,523.10/43,194,784.65 = 21,143,772.70/x
  3. Step 3: Cross multiply
    28,796,523.10x = 43,194,784.65 × 21,143,772.70
  4. Step 4: Simplify right side
    28,796,523.10x = 913,300,708,465,049
  5. Step 5: Solve for x
    x = 913,300,708,465,049/28,796,523.10
  6. Step 6: Final answer
    x = 31,715,659.05

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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.