Home / 13,521,501.72-18,659,819.34-7,409,799

Finding the Fourth Proportional to 13,521,501.72, 18,659,819.34 and 7,409,799

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Solution

The fourth proportional to 13,521,501.72, 18,659,819.34 and 7,409,799 is: 10,225,603.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521,501.72 : 18,659,819.34 = 7,409,799 : x
  2. Step 2: Convert to fraction form
    13,521,501.72/18,659,819.34 = 7,409,799/x
  3. Step 3: Cross multiply
    13,521,501.72x = 18,659,819.34 × 7,409,799
  4. Step 4: Simplify right side
    13,521,501.72x = 138,265,510,685,712.66
  5. Step 5: Solve for x
    x = 138,265,510,685,712.66/13,521,501.72
  6. Step 6: Final answer
    x = 10,225,603.16

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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.