Home / 256,321,046.40-384,481,569.60-83,815,297.80

Finding the Fourth Proportional to 256,321,046.40, 384,481,569.60 and 83,815,297.80

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Solution

The fourth proportional to 256,321,046.40, 384,481,569.60 and 83,815,297.80 is: 125,722,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,321,046.40 : 384,481,569.60 = 83,815,297.80 : x
  2. Step 2: Convert to fraction form
    256,321,046.40/384,481,569.60 = 83,815,297.80/x
  3. Step 3: Cross multiply
    256,321,046.40x = 384,481,569.60 × 83,815,297.80
  4. Step 4: Simplify right side
    256,321,046.40x = 32,225,437,254,635,428
  5. Step 5: Solve for x
    x = 32,225,437,254,635,428/256,321,046.40
  6. Step 6: Final answer
    x = 125,722,946.70

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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.