Home / 285,949,860.09-428,728,975.59-145,618,677

Finding the Fourth Proportional to 285,949,860.09, 428,728,975.59 and 145,618,677

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Solution

The fourth proportional to 285,949,860.09, 428,728,975.59 and 145,618,677 is: 218,328,297.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,949,860.09 : 428,728,975.59 = 145,618,677 : x
  2. Step 2: Convert to fraction form
    285,949,860.09/428,728,975.59 = 145,618,677/x
  3. Step 3: Cross multiply
    285,949,860.09x = 428,728,975.59 × 145,618,677
  4. Step 4: Simplify right side
    285,949,860.09x = 62,430,946,216,981,088
  5. Step 5: Solve for x
    x = 62,430,946,216,981,088/285,949,860.09
  6. Step 6: Final answer
    x = 218,328,297.83

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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.