Home / 428,142,713.06-590,853,185.52-239,974,484.78

Finding the Fourth Proportional to 428,142,713.06, 590,853,185.52 and 239,974,484.78

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Solution

The fourth proportional to 428,142,713.06, 590,853,185.52 and 239,974,484.78 is: 331,173,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,142,713.06 : 590,853,185.52 = 239,974,484.78 : x
  2. Step 2: Convert to fraction form
    428,142,713.06/590,853,185.52 = 239,974,484.78/x
  3. Step 3: Cross multiply
    428,142,713.06x = 590,853,185.52 × 239,974,484.78
  4. Step 4: Simplify right side
    428,142,713.06x = 141,789,688,775,783,760
  5. Step 5: Solve for x
    x = 141,789,688,775,783,760/428,142,713.06
  6. Step 6: Final answer
    x = 331,173,892.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.