Home / 12,131,319.16-18,188,012.04-7,337,852.56

Finding the Fourth Proportional to 12,131,319.16, 18,188,012.04 and 7,337,852.56

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Solution

The fourth proportional to 12,131,319.16, 18,188,012.04 and 7,337,852.56 is: 11,001,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,319.16 : 18,188,012.04 = 7,337,852.56 : x
  2. Step 2: Convert to fraction form
    12,131,319.16/18,188,012.04 = 7,337,852.56/x
  3. Step 3: Cross multiply
    12,131,319.16x = 18,188,012.04 × 7,337,852.56
  4. Step 4: Simplify right side
    12,131,319.16x = 133,460,950,709,024.81
  5. Step 5: Solve for x
    x = 133,460,950,709,024.81/12,131,319.16
  6. Step 6: Final answer
    x = 11,001,355.17

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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.