Home / 12,255,139.84-18,384,705.66-3,620,116.48

Finding the Fourth Proportional to 12,255,139.84, 18,384,705.66 and 3,620,116.48

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Solution

The fourth proportional to 12,255,139.84, 18,384,705.66 and 3,620,116.48 is: 5,430,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255,139.84 : 18,384,705.66 = 3,620,116.48 : x
  2. Step 2: Convert to fraction form
    12,255,139.84/18,384,705.66 = 3,620,116.48/x
  3. Step 3: Cross multiply
    12,255,139.84x = 18,384,705.66 × 3,620,116.48
  4. Step 4: Simplify right side
    12,255,139.84x = 66,554,775,939,715.27
  5. Step 5: Solve for x
    x = 66,554,775,939,715.27/12,255,139.84
  6. Step 6: Final answer
    x = 5,430,764.30

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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.