Home / 81,483,810.84-122,225,749.34-20,074,164.12

Finding the Fourth Proportional to 81,483,810.84, 122,225,749.34 and 20,074,164.12

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Solution

The fourth proportional to 81,483,810.84, 122,225,749.34 and 20,074,164.12 is: 30,111,254.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,483,810.84 : 122,225,749.34 = 20,074,164.12 : x
  2. Step 2: Convert to fraction form
    81,483,810.84/122,225,749.34 = 20,074,164.12/x
  3. Step 3: Cross multiply
    81,483,810.84x = 122,225,749.34 × 20,074,164.12
  4. Step 4: Simplify right side
    81,483,810.84x = 2,453,579,751,840,771
  5. Step 5: Solve for x
    x = 2,453,579,751,840,771/81,483,810.84
  6. Step 6: Final answer
    x = 30,111,254.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.