Home / 155,389,722.86-214,437,069.88-85,774,494.80

Finding the Fourth Proportional to 155,389,722.86, 214,437,069.88 and 85,774,494.80

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Solution

The fourth proportional to 155,389,722.86, 214,437,069.88 and 85,774,494.80 is: 118,368,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,389,722.86 : 214,437,069.88 = 85,774,494.80 : x
  2. Step 2: Convert to fraction form
    155,389,722.86/214,437,069.88 = 85,774,494.80/x
  3. Step 3: Cross multiply
    155,389,722.86x = 214,437,069.88 × 85,774,494.80
  4. Step 4: Simplify right side
    155,389,722.86x = 18,393,231,334,062,676
  5. Step 5: Solve for x
    x = 18,393,231,334,062,676/155,389,722.86
  6. Step 6: Final answer
    x = 118,368,390.11

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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.