Home / 465,437,780,520.45-642,319,985,210.70-270,105,939,136.35

Finding the Fourth Proportional to 465,437,780,520.45, 642,319,985,210.70 and 270,105,939,136.35

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Solution

The fourth proportional to 465,437,780,520.45, 642,319,985,210.70 and 270,105,939,136.35 is: 372,755,393,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,437,780,520.45 : 642,319,985,210.70 = 270,105,939,136.35 : x
  2. Step 2: Convert to fraction form
    465,437,780,520.45/642,319,985,210.70 = 270,105,939,136.35/x
  3. Step 3: Cross multiply
    465,437,780,520.45x = 642,319,985,210.70 × 270,105,939,136.35
  4. Step 4: Simplify right side
    465,437,780,520.45x = 173,494,442,831,382,560,374,784
  5. Step 5: Solve for x
    x = 173,494,442,831,382,560,374,784/465,437,780,520.45
  6. Step 6: Final answer
    x = 372,755,393,078.28

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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.