Home / 13,581,800.13-18,743,238.77-7,470,389.01

Finding the Fourth Proportional to 13,581,800.13, 18,743,238.77 and 7,470,389.01

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Solution

The fourth proportional to 13,581,800.13, 18,743,238.77 and 7,470,389.01 is: 10,309,331.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581,800.13 : 18,743,238.77 = 7,470,389.01 : x
  2. Step 2: Convert to fraction form
    13,581,800.13/18,743,238.77 = 7,470,389.01/x
  3. Step 3: Cross multiply
    13,581,800.13x = 18,743,238.77 × 7,470,389.01
  4. Step 4: Simplify right side
    13,581,800.13x = 140,019,284,881,861.97
  5. Step 5: Solve for x
    x = 140,019,284,881,861.97/13,581,800.13
  6. Step 6: Final answer
    x = 10,309,331.87

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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.