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Finding the Fourth Proportional to 355,978,543.40, 533,967,815.10 and 331,036,245.80

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Solution

The fourth proportional to 355,978,543.40, 533,967,815.10 and 331,036,245.80 is: 496,554,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,978,543.40 : 533,967,815.10 = 331,036,245.80 : x
  2. Step 2: Convert to fraction form
    355,978,543.40/533,967,815.10 = 331,036,245.80/x
  3. Step 3: Cross multiply
    355,978,543.40x = 533,967,815.10 × 331,036,245.80
  4. Step 4: Simplify right side
    355,978,543.40x = 176,762,700,888,732,576
  5. Step 5: Solve for x
    x = 176,762,700,888,732,576/355,978,543.40
  6. Step 6: Final answer
    x = 496,554,368.70

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Why These Related Problems?

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