Home / 658,562,661.55-987,902,057.56-185,865,915.69

Finding the Fourth Proportional to 658,562,661.55, 987,902,057.56 and 185,865,915.69

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Solution

The fourth proportional to 658,562,661.55, 987,902,057.56 and 185,865,915.69 is: 278,815,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,562,661.55 : 987,902,057.56 = 185,865,915.69 : x
  2. Step 2: Convert to fraction form
    658,562,661.55/987,902,057.56 = 185,865,915.69/x
  3. Step 3: Cross multiply
    658,562,661.55x = 987,902,057.56 × 185,865,915.69
  4. Step 4: Simplify right side
    658,562,661.55x = 183,617,320,542,578,432
  5. Step 5: Solve for x
    x = 183,617,320,542,578,432/658,562,661.55
  6. Step 6: Final answer
    x = 278,815,261.27

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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.