Home / 13,237,836.61-18,264,821.79-7,728,045.35

Finding the Fourth Proportional to 13,237,836.61, 18,264,821.79 and 7,728,045.35

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Solution

The fourth proportional to 13,237,836.61, 18,264,821.79 and 7,728,045.35 is: 10,662,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237,836.61 : 18,264,821.79 = 7,728,045.35 : x
  2. Step 2: Convert to fraction form
    13,237,836.61/18,264,821.79 = 7,728,045.35/x
  3. Step 3: Cross multiply
    13,237,836.61x = 18,264,821.79 × 7,728,045.35
  4. Step 4: Simplify right side
    13,237,836.61x = 141,151,371,143,183.84
  5. Step 5: Solve for x
    x = 141,151,371,143,183.84/13,237,836.61
  6. Step 6: Final answer
    x = 10,662,721.96

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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.