Home / 465,437,780,524.95-642,319,985,216.93-270,105,939,140.83

Finding the Fourth Proportional to 465,437,780,524.95, 642,319,985,216.93 and 270,105,939,140.83

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Solution

The fourth proportional to 465,437,780,524.95, 642,319,985,216.93 and 270,105,939,140.83 is: 372,755,393,084.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,437,780,524.95 : 642,319,985,216.93 = 270,105,939,140.83 : x
  2. Step 2: Convert to fraction form
    465,437,780,524.95/642,319,985,216.93 = 270,105,939,140.83/x
  3. Step 3: Cross multiply
    465,437,780,524.95x = 642,319,985,216.93 × 270,105,939,140.83
  4. Step 4: Simplify right side
    465,437,780,524.95x = 173,494,442,835,942,909,673,472
  5. Step 5: Solve for x
    x = 173,494,442,835,942,909,673,472/465,437,780,524.95
  6. Step 6: Final answer
    x = 372,755,393,084.47

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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.