Home / 15,323,740.45-21,145,805.21-8,448,222.51

Finding the Fourth Proportional to 15,323,740.45, 21,145,805.21 and 8,448,222.51

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Solution

The fourth proportional to 15,323,740.45, 21,145,805.21 and 8,448,222.51 is: 11,658,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323,740.45 : 21,145,805.21 = 8,448,222.51 : x
  2. Step 2: Convert to fraction form
    15,323,740.45/21,145,805.21 = 8,448,222.51/x
  3. Step 3: Cross multiply
    15,323,740.45x = 21,145,805.21 × 8,448,222.51
  4. Step 4: Simplify right side
    15,323,740.45x = 178,644,467,588,317.81
  5. Step 5: Solve for x
    x = 178,644,467,588,317.81/15,323,740.45
  6. Step 6: Final answer
    x = 11,658,019.67

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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.