Home / 320,328,049.20-480,492,073.80-280,017,265.20

Finding the Fourth Proportional to 320,328,049.20, 480,492,073.80 and 280,017,265.20

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Solution

The fourth proportional to 320,328,049.20, 480,492,073.80 and 280,017,265.20 is: 420,025,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,328,049.20 : 480,492,073.80 = 280,017,265.20 : x
  2. Step 2: Convert to fraction form
    320,328,049.20/480,492,073.80 = 280,017,265.20/x
  3. Step 3: Cross multiply
    320,328,049.20x = 480,492,073.80 × 280,017,265.20
  4. Step 4: Simplify right side
    320,328,049.20x = 134,546,076,455,752,576
  5. Step 5: Solve for x
    x = 134,546,076,455,752,576/320,328,049.20
  6. Step 6: Final answer
    x = 420,025,897.80

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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.