Home / 190,270,506.60-285,405,759.90-99,382,285.80

Finding the Fourth Proportional to 190,270,506.60, 285,405,759.90 and 99,382,285.80

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Solution

The fourth proportional to 190,270,506.60, 285,405,759.90 and 99,382,285.80 is: 149,073,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,270,506.60 : 285,405,759.90 = 99,382,285.80 : x
  2. Step 2: Convert to fraction form
    190,270,506.60/285,405,759.90 = 99,382,285.80/x
  3. Step 3: Cross multiply
    190,270,506.60x = 285,405,759.90 × 99,382,285.80
  4. Step 4: Simplify right side
    190,270,506.60x = 28,364,276,799,347,976
  5. Step 5: Solve for x
    x = 28,364,276,799,347,976/190,270,506.60
  6. Step 6: Final answer
    x = 149,073,428.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.