Home / 314,936,769.20-472,405,153.80-185,411,418.80

Finding the Fourth Proportional to 314,936,769.20, 472,405,153.80 and 185,411,418.80

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Solution

The fourth proportional to 314,936,769.20, 472,405,153.80 and 185,411,418.80 is: 278,117,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,936,769.20 : 472,405,153.80 = 185,411,418.80 : x
  2. Step 2: Convert to fraction form
    314,936,769.20/472,405,153.80 = 185,411,418.80/x
  3. Step 3: Cross multiply
    314,936,769.20x = 472,405,153.80 × 185,411,418.80
  4. Step 4: Simplify right side
    314,936,769.20x = 87,589,309,814,490,224
  5. Step 5: Solve for x
    x = 87,589,309,814,490,224/314,936,769.20
  6. Step 6: Final answer
    x = 278,117,128.20

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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.