Home / 13,586,686.68-18,749,709.16-7,391,777.83

Finding the Fourth Proportional to 13,586,686.68, 18,749,709.16 and 7,391,777.83

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Solution

The fourth proportional to 13,586,686.68, 18,749,709.16 and 7,391,777.83 is: 10,200,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586,686.68 : 18,749,709.16 = 7,391,777.83 : x
  2. Step 2: Convert to fraction form
    13,586,686.68/18,749,709.16 = 7,391,777.83/x
  3. Step 3: Cross multiply
    13,586,686.68x = 18,749,709.16 × 7,391,777.83
  4. Step 4: Simplify right side
    13,586,686.68x = 138,593,684,487,835.92
  5. Step 5: Solve for x
    x = 138,593,684,487,835.92/13,586,686.68
  6. Step 6: Final answer
    x = 10,200,697.77

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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.