Home / 13,990,581.45-19,307,041.63-8,111,358.20

Finding the Fourth Proportional to 13,990,581.45, 19,307,041.63 and 8,111,358.20

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Solution

The fourth proportional to 13,990,581.45, 19,307,041.63 and 8,111,358.20 is: 11,193,697.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990,581.45 : 19,307,041.63 = 8,111,358.20 : x
  2. Step 2: Convert to fraction form
    13,990,581.45/19,307,041.63 = 8,111,358.20/x
  3. Step 3: Cross multiply
    13,990,581.45x = 19,307,041.63 × 8,111,358.20
  4. Step 4: Simplify right side
    13,990,581.45x = 156,606,330,471,231.09
  5. Step 5: Solve for x
    x = 156,606,330,471,231.09/13,990,581.45
  6. Step 6: Final answer
    x = 11,193,697.06

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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.