Home / 12,119,731.20-18,185,955.84-4,551,920.64

Finding the Fourth Proportional to 12,119,731.20, 18,185,955.84 and 4,551,920.64

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Solution

The fourth proportional to 12,119,731.20, 18,185,955.84 and 4,551,920.64 is: 6,830,269.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119,731.20 : 18,185,955.84 = 4,551,920.64 : x
  2. Step 2: Convert to fraction form
    12,119,731.20/18,185,955.84 = 4,551,920.64/x
  3. Step 3: Cross multiply
    12,119,731.20x = 18,185,955.84 × 4,551,920.64
  4. Step 4: Simplify right side
    12,119,731.20x = 82,781,027,746,224.53
  5. Step 5: Solve for x
    x = 82,781,027,746,224.53/12,119,731.20
  6. Step 6: Final answer
    x = 6,830,269.28

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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.