Home / 388,461,297.60-582,691,946.40-266,017,291.20

Finding the Fourth Proportional to 388,461,297.60, 582,691,946.40 and 266,017,291.20

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Solution

The fourth proportional to 388,461,297.60, 582,691,946.40 and 266,017,291.20 is: 399,025,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,461,297.60 : 582,691,946.40 = 266,017,291.20 : x
  2. Step 2: Convert to fraction form
    388,461,297.60/582,691,946.40 = 266,017,291.20/x
  3. Step 3: Cross multiply
    388,461,297.60x = 582,691,946.40 × 266,017,291.20
  4. Step 4: Simplify right side
    388,461,297.60x = 155,006,133,185,383,584
  5. Step 5: Solve for x
    x = 155,006,133,185,383,584/388,461,297.60
  6. Step 6: Final answer
    x = 399,025,936.80

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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.