Home / 12,168,973.20-18,255,895.58-4,492,664.72

Finding the Fourth Proportional to 12,168,973.20, 18,255,895.58 and 4,492,664.72

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Solution

The fourth proportional to 12,168,973.20, 18,255,895.58 and 4,492,664.72 is: 6,739,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168,973.20 : 18,255,895.58 = 4,492,664.72 : x
  2. Step 2: Convert to fraction form
    12,168,973.20/18,255,895.58 = 4,492,664.72/x
  3. Step 3: Cross multiply
    12,168,973.20x = 18,255,895.58 × 4,492,664.72
  4. Step 4: Simplify right side
    12,168,973.20x = 82,017,617,890,527.12
  5. Step 5: Solve for x
    x = 82,017,617,890,527.12/12,168,973.20
  6. Step 6: Final answer
    x = 6,739,896.34

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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.