Home / 428,575,246.80-591,559,709.64-279,919,093.84

Finding the Fourth Proportional to 428,575,246.80, 591,559,709.64 and 279,919,093.84

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Solution

The fourth proportional to 428,575,246.80, 591,559,709.64 and 279,919,093.84 is: 386,370,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,575,246.80 : 591,559,709.64 = 279,919,093.84 : x
  2. Step 2: Convert to fraction form
    428,575,246.80/591,559,709.64 = 279,919,093.84/x
  3. Step 3: Cross multiply
    428,575,246.80x = 591,559,709.64 × 279,919,093.84
  4. Step 4: Simplify right side
    428,575,246.80x = 165,588,857,874,682,304
  5. Step 5: Solve for x
    x = 165,588,857,874,682,304/428,575,246.80
  6. Step 6: Final answer
    x = 386,370,559.46

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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.