Home / 14,947,497-20,630,905.86-9,787,861.80

Finding the Fourth Proportional to 14,947,497, 20,630,905.86 and 9,787,861.80

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Solution

The fourth proportional to 14,947,497, 20,630,905.86 and 9,787,861.80 is: 13,509,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947,497 : 20,630,905.86 = 9,787,861.80 : x
  2. Step 2: Convert to fraction form
    14,947,497/20,630,905.86 = 9,787,861.80/x
  3. Step 3: Cross multiply
    14,947,497x = 20,630,905.86 × 9,787,861.80
  4. Step 4: Simplify right side
    14,947,497x = 201,932,455,366,490.16
  5. Step 5: Solve for x
    x = 201,932,455,366,490.16/14,947,497
  6. Step 6: Final answer
    x = 13,509,449.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.