Home / 8,309,373-12,465,675.45-3,191,428.50

Finding the Fourth Proportional to 8,309,373, 12,465,675.45 and 3,191,428.50

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Solution

The fourth proportional to 8,309,373, 12,465,675.45 and 3,191,428.50 is: 4,787,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,373 : 12,465,675.45 = 3,191,428.50 : x
  2. Step 2: Convert to fraction form
    8,309,373/12,465,675.45 = 3,191,428.50/x
  3. Step 3: Cross multiply
    8,309,373x = 12,465,675.45 × 3,191,428.50
  4. Step 4: Simplify right side
    8,309,373x = 39,783,311,902,880.32
  5. Step 5: Solve for x
    x = 39,783,311,902,880.32/8,309,373
  6. Step 6: Final answer
    x = 4,787,763.40

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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.