Home / 12,462,802.20-18,692,820.90-10,215,019.80

Finding the Fourth Proportional to 12,462,802.20, 18,692,820.90 and 10,215,019.80

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Solution

The fourth proportional to 12,462,802.20, 18,692,820.90 and 10,215,019.80 is: 15,321,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,802.20 : 18,692,820.90 = 10,215,019.80 : x
  2. Step 2: Convert to fraction form
    12,462,802.20/18,692,820.90 = 10,215,019.80/x
  3. Step 3: Cross multiply
    12,462,802.20x = 18,692,820.90 × 10,215,019.80
  4. Step 4: Simplify right side
    12,462,802.20x = 190,947,535,611,353.81
  5. Step 5: Solve for x
    x = 190,947,535,611,353.81/12,462,802.20
  6. Step 6: Final answer
    x = 15,321,396.63

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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.