Home / 13,185,596.69-18,191,569.68-8,291,191.23

Finding the Fourth Proportional to 13,185,596.69, 18,191,569.68 and 8,291,191.23

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Solution

The fourth proportional to 13,185,596.69, 18,191,569.68 and 8,291,191.23 is: 11,438,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185,596.69 : 18,191,569.68 = 8,291,191.23 : x
  2. Step 2: Convert to fraction form
    13,185,596.69/18,191,569.68 = 8,291,191.23/x
  3. Step 3: Cross multiply
    13,185,596.69x = 18,191,569.68 × 8,291,191.23
  4. Step 4: Simplify right side
    13,185,596.69x = 150,829,782,990,749.91
  5. Step 5: Solve for x
    x = 150,829,782,990,749.91/13,185,596.69
  6. Step 6: Final answer
    x = 11,438,980.47

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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.