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Finding the Fourth Proportional to 349,978,697.51, 524,896,786.08 and 128,573,940.78

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Solution

The fourth proportional to 349,978,697.51, 524,896,786.08 and 128,573,940.78 is: 192,834,731.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,978,697.51 : 524,896,786.08 = 128,573,940.78 : x
  2. Step 2: Convert to fraction form
    349,978,697.51/524,896,786.08 = 128,573,940.78/x
  3. Step 3: Cross multiply
    349,978,697.51x = 524,896,786.08 × 128,573,940.78
  4. Step 4: Simplify right side
    349,978,697.51x = 67,488,048,289,062,248
  5. Step 5: Solve for x
    x = 67,488,048,289,062,248/349,978,697.51
  6. Step 6: Final answer
    x = 192,834,731.86

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Why These Related Problems?

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