Home / 12,381,051.67-18,561,809.99-7,822,491.94

Finding the Fourth Proportional to 12,381,051.67, 18,561,809.99 and 7,822,491.94

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Solution

The fourth proportional to 12,381,051.67, 18,561,809.99 and 7,822,491.94 is: 11,727,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,051.67 : 18,561,809.99 = 7,822,491.94 : x
  2. Step 2: Convert to fraction form
    12,381,051.67/18,561,809.99 = 7,822,491.94/x
  3. Step 3: Cross multiply
    12,381,051.67x = 18,561,809.99 × 7,822,491.94
  4. Step 4: Simplify right side
    12,381,051.67x = 145,199,609,038,586.47
  5. Step 5: Solve for x
    x = 145,199,609,038,586.47/12,381,051.67
  6. Step 6: Final answer
    x = 11,727,566.68

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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.