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Finding the Fourth Proportional to 369,810,978.60, 510,347,409.36 and 211,037,939.88

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Solution

The fourth proportional to 369,810,978.60, 510,347,409.36 and 211,037,939.88 is: 291,237,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,810,978.60 : 510,347,409.36 = 211,037,939.88 : x
  2. Step 2: Convert to fraction form
    369,810,978.60/510,347,409.36 = 211,037,939.88/x
  3. Step 3: Cross multiply
    369,810,978.60x = 510,347,409.36 × 211,037,939.88
  4. Step 4: Simplify right side
    369,810,978.60x = 107,702,665,894,429,424
  5. Step 5: Solve for x
    x = 107,702,665,894,429,424/369,810,978.60
  6. Step 6: Final answer
    x = 291,237,070.09

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Why These Related Problems?

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