Home / 465,437,780,521.45-642,319,985,212.08-270,105,939,137.35

Finding the Fourth Proportional to 465,437,780,521.45, 642,319,985,212.08 and 270,105,939,137.35

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Solution

The fourth proportional to 465,437,780,521.45, 642,319,985,212.08 and 270,105,939,137.35 is: 372,755,393,079.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,437,780,521.45 : 642,319,985,212.08 = 270,105,939,137.35 : x
  2. Step 2: Convert to fraction form
    465,437,780,521.45/642,319,985,212.08 = 270,105,939,137.35/x
  3. Step 3: Cross multiply
    465,437,780,521.45x = 642,319,985,212.08 × 270,105,939,137.35
  4. Step 4: Simplify right side
    465,437,780,521.45x = 173,494,442,832,397,615,497,216
  5. Step 5: Solve for x
    x = 173,494,442,832,397,615,497,216/465,437,780,521.45
  6. Step 6: Final answer
    x = 372,755,393,079.66

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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.