Home / 436,428,310.80-654,642,466.20-389,076,917.70

Finding the Fourth Proportional to 436,428,310.80, 654,642,466.20 and 389,076,917.70

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Solution

The fourth proportional to 436,428,310.80, 654,642,466.20 and 389,076,917.70 is: 583,615,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,428,310.80 : 654,642,466.20 = 389,076,917.70 : x
  2. Step 2: Convert to fraction form
    436,428,310.80/654,642,466.20 = 389,076,917.70/x
  3. Step 3: Cross multiply
    436,428,310.80x = 654,642,466.20 × 389,076,917.70
  4. Step 4: Simplify right side
    436,428,310.80x = 254,706,272,944,622,432
  5. Step 5: Solve for x
    x = 254,706,272,944,622,432/436,428,310.80
  6. Step 6: Final answer
    x = 583,615,376.55

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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.