Home / 13,148,409.26-18,144,456.71-7,347,238.67

Finding the Fourth Proportional to 13,148,409.26, 18,144,456.71 and 7,347,238.67

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Solution

The fourth proportional to 13,148,409.26, 18,144,456.71 and 7,347,238.67 is: 10,138,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,409.26 : 18,144,456.71 = 7,347,238.67 : x
  2. Step 2: Convert to fraction form
    13,148,409.26/18,144,456.71 = 7,347,238.67/x
  3. Step 3: Cross multiply
    13,148,409.26x = 18,144,456.71 × 7,347,238.67
  4. Step 4: Simplify right side
    13,148,409.26x = 133,311,653,994,477.92
  5. Step 5: Solve for x
    x = 133,311,653,994,477.92/13,148,409.26
  6. Step 6: Final answer
    x = 10,138,994.86

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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.