Home / 10,866,192-15,007,942.08-7,238,221.44

Finding the Fourth Proportional to 10,866,192, 15,007,942.08 and 7,238,221.44

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Solution

The fourth proportional to 10,866,192, 15,007,942.08 and 7,238,221.44 is: 9,997,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,192 : 15,007,942.08 = 7,238,221.44 : x
  2. Step 2: Convert to fraction form
    10,866,192/15,007,942.08 = 7,238,221.44/x
  3. Step 3: Cross multiply
    10,866,192x = 15,007,942.08 × 7,238,221.44
  4. Step 4: Simplify right side
    10,866,192x = 108,630,808,133,734.20
  5. Step 5: Solve for x
    x = 108,630,808,133,734.20/10,866,192
  6. Step 6: Final answer
    x = 9,997,136.82

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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.