Home / 18,989,412.90-28,484,119.70-4,612,383.81

Finding the Fourth Proportional to 18,989,412.90, 28,484,119.70 and 4,612,383.81

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Solution

The fourth proportional to 18,989,412.90, 28,484,119.70 and 4,612,383.81 is: 6,918,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,412.90 : 28,484,119.70 = 4,612,383.81 : x
  2. Step 2: Convert to fraction form
    18,989,412.90/28,484,119.70 = 4,612,383.81/x
  3. Step 3: Cross multiply
    18,989,412.90x = 28,484,119.70 × 4,612,383.81
  4. Step 4: Simplify right side
    18,989,412.90x = 131,379,692,540,616.56
  5. Step 5: Solve for x
    x = 131,379,692,540,616.56/18,989,412.90
  6. Step 6: Final answer
    x = 6,918,575.80

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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.