Home / 12,454,495.20-18,681,742.80-7,646,594.40

Finding the Fourth Proportional to 12,454,495.20, 18,681,742.80 and 7,646,594.40

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Solution

The fourth proportional to 12,454,495.20, 18,681,742.80 and 7,646,594.40 is: 11,469,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,495.20 : 18,681,742.80 = 7,646,594.40 : x
  2. Step 2: Convert to fraction form
    12,454,495.20/18,681,742.80 = 7,646,594.40/x
  3. Step 3: Cross multiply
    12,454,495.20x = 18,681,742.80 × 7,646,594.40
  4. Step 4: Simplify right side
    12,454,495.20x = 142,851,709,876,720.34
  5. Step 5: Solve for x
    x = 142,851,709,876,720.34/12,454,495.20
  6. Step 6: Final answer
    x = 11,469,891.60

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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.