Home / 278,968,076.48-384,966,255.84-153,508,548.80

Finding the Fourth Proportional to 278,968,076.48, 384,966,255.84 and 153,508,548.80

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Solution

The fourth proportional to 278,968,076.48, 384,966,255.84 and 153,508,548.80 is: 211,836,465.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,968,076.48 : 384,966,255.84 = 153,508,548.80 : x
  2. Step 2: Convert to fraction form
    278,968,076.48/384,966,255.84 = 153,508,548.80/x
  3. Step 3: Cross multiply
    278,968,076.48x = 384,966,255.84 × 153,508,548.80
  4. Step 4: Simplify right side
    278,968,076.48x = 59,095,611,270,967,928
  5. Step 5: Solve for x
    x = 59,095,611,270,967,928/278,968,076.48
  6. Step 6: Final answer
    x = 211,836,465.36

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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.