Home / 13,186,708.99-18,191,861.64-7,956,800.01

Finding the Fourth Proportional to 13,186,708.99, 18,191,861.64 and 7,956,800.01

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Solution

The fourth proportional to 13,186,708.99, 18,191,861.64 and 7,956,800.01 is: 10,976,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186,708.99 : 18,191,861.64 = 7,956,800.01 : x
  2. Step 2: Convert to fraction form
    13,186,708.99/18,191,861.64 = 7,956,800.01/x
  3. Step 3: Cross multiply
    13,186,708.99x = 18,191,861.64 × 7,956,800.01
  4. Step 4: Simplify right side
    13,186,708.99x = 144,749,004,879,070.62
  5. Step 5: Solve for x
    x = 144,749,004,879,070.62/13,186,708.99
  6. Step 6: Final answer
    x = 10,976,886.27

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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.