Home / 545,749,943.80-818,624,915.70-218,382,287.80

Finding the Fourth Proportional to 545,749,943.80, 818,624,915.70 and 218,382,287.80

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Solution

The fourth proportional to 545,749,943.80, 818,624,915.70 and 218,382,287.80 is: 327,573,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,749,943.80 : 818,624,915.70 = 218,382,287.80 : x
  2. Step 2: Convert to fraction form
    545,749,943.80/818,624,915.70 = 218,382,287.80/x
  3. Step 3: Cross multiply
    545,749,943.80x = 818,624,915.70 × 218,382,287.80
  4. Step 4: Simplify right side
    545,749,943.80x = 178,773,181,940,648,160
  5. Step 5: Solve for x
    x = 178,773,181,940,648,160/545,749,943.80
  6. Step 6: Final answer
    x = 327,573,431.70

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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.