Home / 291,348,009.20-437,022,013.80-199,515,004.40

Finding the Fourth Proportional to 291,348,009.20, 437,022,013.80 and 199,515,004.40

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Solution

The fourth proportional to 291,348,009.20, 437,022,013.80 and 199,515,004.40 is: 299,272,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,348,009.20 : 437,022,013.80 = 199,515,004.40 : x
  2. Step 2: Convert to fraction form
    291,348,009.20/437,022,013.80 = 199,515,004.40/x
  3. Step 3: Cross multiply
    291,348,009.20x = 437,022,013.80 × 199,515,004.40
  4. Step 4: Simplify right side
    291,348,009.20x = 87,192,449,006,203,872
  5. Step 5: Solve for x
    x = 87,192,449,006,203,872/291,348,009.20
  6. Step 6: Final answer
    x = 299,272,506.60

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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.