Home / 15,300,138.48-21,114,655.68-8,424,866.56

Finding the Fourth Proportional to 15,300,138.48, 21,114,655.68 and 8,424,866.56

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Solution

The fourth proportional to 15,300,138.48, 21,114,655.68 and 8,424,866.56 is: 11,626,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300,138.48 : 21,114,655.68 = 8,424,866.56 : x
  2. Step 2: Convert to fraction form
    15,300,138.48/21,114,655.68 = 8,424,866.56/x
  3. Step 3: Cross multiply
    15,300,138.48x = 21,114,655.68 × 8,424,866.56
  4. Step 4: Simplify right side
    15,300,138.48x = 177,888,156,564,346.06
  5. Step 5: Solve for x
    x = 177,888,156,564,346.06/15,300,138.48
  6. Step 6: Final answer
    x = 11,626,571.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.