Home / 420,052,506.49-630,078,759.74-113,344,127.29

Finding the Fourth Proportional to 420,052,506.49, 630,078,759.74 and 113,344,127.29

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Solution

The fourth proportional to 420,052,506.49, 630,078,759.74 and 113,344,127.29 is: 170,016,190.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,052,506.49 : 630,078,759.74 = 113,344,127.29 : x
  2. Step 2: Convert to fraction form
    420,052,506.49/630,078,759.74 = 113,344,127.29/x
  3. Step 3: Cross multiply
    420,052,506.49x = 630,078,759.74 × 113,344,127.29
  4. Step 4: Simplify right side
    420,052,506.49x = 71,415,727,146,129,176
  5. Step 5: Solve for x
    x = 71,415,727,146,129,176/420,052,506.49
  6. Step 6: Final answer
    x = 170,016,190.94

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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.