Home / 13,286,214.90-19,928,285.55-5,197,619.70

Finding the Fourth Proportional to 13,286,214.90, 19,928,285.55 and 5,197,619.70

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Solution

The fourth proportional to 13,286,214.90, 19,928,285.55 and 5,197,619.70 is: 7,796,023.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,214.90 : 19,928,285.55 = 5,197,619.70 : x
  2. Step 2: Convert to fraction form
    13,286,214.90/19,928,285.55 = 5,197,619.70/x
  3. Step 3: Cross multiply
    13,286,214.90x = 19,928,285.55 × 5,197,619.70
  4. Step 4: Simplify right side
    13,286,214.90x = 103,579,649,561,905.34
  5. Step 5: Solve for x
    x = 103,579,649,561,905.34/13,286,214.90
  6. Step 6: Final answer
    x = 7,796,023.95

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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.