Home / 13,054,805.61-18,014,548.68-7,174,130.55

Finding the Fourth Proportional to 13,054,805.61, 18,014,548.68 and 7,174,130.55

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Solution

The fourth proportional to 13,054,805.61, 18,014,548.68 and 7,174,130.55 is: 9,899,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054,805.61 : 18,014,548.68 = 7,174,130.55 : x
  2. Step 2: Convert to fraction form
    13,054,805.61/18,014,548.68 = 7,174,130.55/x
  3. Step 3: Cross multiply
    13,054,805.61x = 18,014,548.68 × 7,174,130.55
  4. Step 4: Simplify right side
    13,054,805.61x = 129,238,724,029,650.17
  5. Step 5: Solve for x
    x = 129,238,724,029,650.17/13,054,805.61
  6. Step 6: Final answer
    x = 9,899,704.97

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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.