Home / 30,278,990.81-41,784,474.11-17,225,971.49

Finding the Fourth Proportional to 30,278,990.81, 41,784,474.11 and 17,225,971.49

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Solution

The fourth proportional to 30,278,990.81, 41,784,474.11 and 17,225,971.49 is: 23,771,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278,990.81 : 41,784,474.11 = 17,225,971.49 : x
  2. Step 2: Convert to fraction form
    30,278,990.81/41,784,474.11 = 17,225,971.49/x
  3. Step 3: Cross multiply
    30,278,990.81x = 41,784,474.11 × 17,225,971.49
  4. Step 4: Simplify right side
    30,278,990.81x = 719,778,159,761,834.38
  5. Step 5: Solve for x
    x = 719,778,159,761,834.38/30,278,990.81
  6. Step 6: Final answer
    x = 23,771,537.31

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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.