Home / 12,213,691.20-18,315,007.20-4,638,139.20

Finding the Fourth Proportional to 12,213,691.20, 18,315,007.20 and 4,638,139.20

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Solution

The fourth proportional to 12,213,691.20, 18,315,007.20 and 4,638,139.20 is: 6,955,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213,691.20 : 18,315,007.20 = 4,638,139.20 : x
  2. Step 2: Convert to fraction form
    12,213,691.20/18,315,007.20 = 4,638,139.20/x
  3. Step 3: Cross multiply
    12,213,691.20x = 18,315,007.20 × 4,638,139.20
  4. Step 4: Simplify right side
    12,213,691.20x = 84,947,552,842,602.23
  5. Step 5: Solve for x
    x = 84,947,552,842,602.23/12,213,691.20
  6. Step 6: Final answer
    x = 6,955,108.94

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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.