Home / 12,115,365.20-18,173,047.80-11,637,068.30

Finding the Fourth Proportional to 12,115,365.20, 18,173,047.80 and 11,637,068.30

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Solution

The fourth proportional to 12,115,365.20, 18,173,047.80 and 11,637,068.30 is: 17,455,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,365.20 : 18,173,047.80 = 11,637,068.30 : x
  2. Step 2: Convert to fraction form
    12,115,365.20/18,173,047.80 = 11,637,068.30/x
  3. Step 3: Cross multiply
    12,115,365.20x = 18,173,047.80 × 11,637,068.30
  4. Step 4: Simplify right side
    12,115,365.20x = 211,480,998,467,764.75
  5. Step 5: Solve for x
    x = 211,480,998,467,764.75/12,115,365.20
  6. Step 6: Final answer
    x = 17,455,602.45

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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.