Home / 13,608,639.60-20,384,965.80-9,353,612.40

Finding the Fourth Proportional to 13,608,639.60, 20,384,965.80 and 9,353,612.40

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Solution

The fourth proportional to 13,608,639.60, 20,384,965.80 and 9,353,612.40 is: 14,011,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,639.60 : 20,384,965.80 = 9,353,612.40 : x
  2. Step 2: Convert to fraction form
    13,608,639.60/20,384,965.80 = 9,353,612.40/x
  3. Step 3: Cross multiply
    13,608,639.60x = 20,384,965.80 × 9,353,612.40
  4. Step 4: Simplify right side
    13,608,639.60x = 190,673,068,880,455.94
  5. Step 5: Solve for x
    x = 190,673,068,880,455.94/13,608,639.60
  6. Step 6: Final answer
    x = 14,011,177.79

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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.