Home / 465,437,780,519.45-642,319,985,209.32-270,105,939,135.35

Finding the Fourth Proportional to 465,437,780,519.45, 642,319,985,209.32 and 270,105,939,135.35

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Solution

The fourth proportional to 465,437,780,519.45, 642,319,985,209.32 and 270,105,939,135.35 is: 372,755,393,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,437,780,519.45 : 642,319,985,209.32 = 270,105,939,135.35 : x
  2. Step 2: Convert to fraction form
    465,437,780,519.45/642,319,985,209.32 = 270,105,939,135.35/x
  3. Step 3: Cross multiply
    465,437,780,519.45x = 642,319,985,209.32 × 270,105,939,135.35
  4. Step 4: Simplify right side
    465,437,780,519.45x = 173,494,442,830,367,505,252,352
  5. Step 5: Solve for x
    x = 173,494,442,830,367,505,252,352/465,437,780,519.45
  6. Step 6: Final answer
    x = 372,755,393,076.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.