Home / 81,483,920.22-122,225,913.27-20,074,273.50

Finding the Fourth Proportional to 81,483,920.22, 122,225,913.27 and 20,074,273.50

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Solution

The fourth proportional to 81,483,920.22, 122,225,913.27 and 20,074,273.50 is: 30,111,418.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,483,920.22 : 122,225,913.27 = 20,074,273.50 : x
  2. Step 2: Convert to fraction form
    81,483,920.22/122,225,913.27 = 20,074,273.50/x
  3. Step 3: Cross multiply
    81,483,920.22x = 122,225,913.27 × 20,074,273.50
  4. Step 4: Simplify right side
    81,483,920.22x = 2,453,596,411,769,259.50
  5. Step 5: Solve for x
    x = 2,453,596,411,769,259.50/81,483,920.22
  6. Step 6: Final answer
    x = 30,111,418.37

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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.