Home / 428,054,572,833.84-642,067,317,246.24-109,703,897,538.48

Finding the Fourth Proportional to 428,054,572,833.84, 642,067,317,246.24 and 109,703,897,538.48

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Solution

The fourth proportional to 428,054,572,833.84, 642,067,317,246.24 and 109,703,897,538.48 is: 164,552,119,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,054,572,833.84 : 642,067,317,246.24 = 109,703,897,538.48 : x
  2. Step 2: Convert to fraction form
    428,054,572,833.84/642,067,317,246.24 = 109,703,897,538.48/x
  3. Step 3: Cross multiply
    428,054,572,833.84x = 642,067,317,246.24 × 109,703,897,538.48
  4. Step 4: Simplify right side
    428,054,572,833.84x = 70,437,287,183,988,245,397,504
  5. Step 5: Solve for x
    x = 70,437,287,183,988,245,397,504/428,054,572,833.84
  6. Step 6: Final answer
    x = 164,552,119,412.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.