Home / 13,285,429.40-19,928,144.10-4,309,981.40

Finding the Fourth Proportional to 13,285,429.40, 19,928,144.10 and 4,309,981.40

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Solution

The fourth proportional to 13,285,429.40, 19,928,144.10 and 4,309,981.40 is: 6,464,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,429.40 : 19,928,144.10 = 4,309,981.40 : x
  2. Step 2: Convert to fraction form
    13,285,429.40/19,928,144.10 = 4,309,981.40/x
  3. Step 3: Cross multiply
    13,285,429.40x = 19,928,144.10 × 4,309,981.40
  4. Step 4: Simplify right side
    13,285,429.40x = 85,889,930,407,519.75
  5. Step 5: Solve for x
    x = 85,889,930,407,519.75/13,285,429.40
  6. Step 6: Final answer
    x = 6,464,972.10

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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.