Home / 16,656,643.20-24,984,964.80-8,142,441.60

Finding the Fourth Proportional to 16,656,643.20, 24,984,964.80 and 8,142,441.60

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Solution

The fourth proportional to 16,656,643.20, 24,984,964.80 and 8,142,441.60 is: 12,213,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656,643.20 : 24,984,964.80 = 8,142,441.60 : x
  2. Step 2: Convert to fraction form
    16,656,643.20/24,984,964.80 = 8,142,441.60/x
  3. Step 3: Cross multiply
    16,656,643.20x = 24,984,964.80 × 8,142,441.60
  4. Step 4: Simplify right side
    16,656,643.20x = 203,438,616,762,055.69
  5. Step 5: Solve for x
    x = 203,438,616,762,055.69/16,656,643.20
  6. Step 6: Final answer
    x = 12,213,662.40

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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.