Home / 465,437,780,521.70-642,319,985,212.43-270,105,939,137.58

Finding the Fourth Proportional to 465,437,780,521.70, 642,319,985,212.43 and 270,105,939,137.58

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Solution

The fourth proportional to 465,437,780,521.70, 642,319,985,212.43 and 270,105,939,137.58 is: 372,755,393,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,437,780,521.70 : 642,319,985,212.43 = 270,105,939,137.58 : x
  2. Step 2: Convert to fraction form
    465,437,780,521.70/642,319,985,212.43 = 270,105,939,137.58/x
  3. Step 3: Cross multiply
    465,437,780,521.70x = 642,319,985,212.43 × 270,105,939,137.58
  4. Step 4: Simplify right side
    465,437,780,521.70x = 173,494,442,832,639,912,050,688
  5. Step 5: Solve for x
    x = 173,494,442,832,639,912,050,688/465,437,780,521.70
  6. Step 6: Final answer
    x = 372,755,393,079.98

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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.