Home / 12,115,365.70-18,173,048.55-11,637,068.80

Finding the Fourth Proportional to 12,115,365.70, 18,173,048.55 and 11,637,068.80

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Solution

The fourth proportional to 12,115,365.70, 18,173,048.55 and 11,637,068.80 is: 17,455,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,365.70 : 18,173,048.55 = 11,637,068.80 : x
  2. Step 2: Convert to fraction form
    12,115,365.70/18,173,048.55 = 11,637,068.80/x
  3. Step 3: Cross multiply
    12,115,365.70x = 18,173,048.55 × 11,637,068.80
  4. Step 4: Simplify right side
    12,115,365.70x = 211,481,016,282,090.25
  5. Step 5: Solve for x
    x = 211,481,016,282,090.25/12,115,365.70
  6. Step 6: Final answer
    x = 17,455,603.20

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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.