Home / 21,778,052.65-30,054,094.81-11,855,220.75

Finding the Fourth Proportional to 21,778,052.65, 30,054,094.81 and 11,855,220.75

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Solution

The fourth proportional to 21,778,052.65, 30,054,094.81 and 11,855,220.75 is: 16,360,412.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778,052.65 : 30,054,094.81 = 11,855,220.75 : x
  2. Step 2: Convert to fraction form
    21,778,052.65/30,054,094.81 = 11,855,220.75/x
  3. Step 3: Cross multiply
    21,778,052.65x = 30,054,094.81 × 11,855,220.75
  4. Step 4: Simplify right side
    21,778,052.65x = 356,297,928,384,341.25
  5. Step 5: Solve for x
    x = 356,297,928,384,341.25/21,778,052.65
  6. Step 6: Final answer
    x = 16,360,412.67

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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.