Home / 13,289,864.20-19,934,796.30-7,243,246.60

Finding the Fourth Proportional to 13,289,864.20, 19,934,796.30 and 7,243,246.60

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Solution

The fourth proportional to 13,289,864.20, 19,934,796.30 and 7,243,246.60 is: 10,864,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289,864.20 : 19,934,796.30 = 7,243,246.60 : x
  2. Step 2: Convert to fraction form
    13,289,864.20/19,934,796.30 = 7,243,246.60/x
  3. Step 3: Cross multiply
    13,289,864.20x = 19,934,796.30 × 7,243,246.60
  4. Step 4: Simplify right side
    13,289,864.20x = 144,392,645,521,667.56
  5. Step 5: Solve for x
    x = 144,392,645,521,667.56/13,289,864.20
  6. Step 6: Final answer
    x = 10,864,869.90

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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.