Home / 13,054,781.48-18,014,515.63-7,174,106.45

Finding the Fourth Proportional to 13,054,781.48, 18,014,515.63 and 7,174,106.45

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Solution

The fourth proportional to 13,054,781.48, 18,014,515.63 and 7,174,106.45 is: 9,899,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054,781.48 : 18,014,515.63 = 7,174,106.45 : x
  2. Step 2: Convert to fraction form
    13,054,781.48/18,014,515.63 = 7,174,106.45/x
  3. Step 3: Cross multiply
    13,054,781.48x = 18,014,515.63 × 7,174,106.45
  4. Step 4: Simplify right side
    13,054,781.48x = 129,238,052,734,355.42
  5. Step 5: Solve for x
    x = 129,238,052,734,355.42/13,054,781.48
  6. Step 6: Final answer
    x = 9,899,671.85

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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.