Home / 693,632,428.03-1,040,396,312.44-220,912,368.81

Finding the Fourth Proportional to 693,632,428.03, 1,040,396,312.44 and 220,912,368.81

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Solution

The fourth proportional to 693,632,428.03, 1,040,396,312.44 and 220,912,368.81 is: 331,351,886.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,632,428.03 : 1,040,396,312.44 = 220,912,368.81 : x
  2. Step 2: Convert to fraction form
    693,632,428.03/1,040,396,312.44 = 220,912,368.81/x
  3. Step 3: Cross multiply
    693,632,428.03x = 1,040,396,312.44 × 220,912,368.81
  4. Step 4: Simplify right side
    693,632,428.03x = 229,836,413,878,823,072
  5. Step 5: Solve for x
    x = 229,836,413,878,823,072/693,632,428.03
  6. Step 6: Final answer
    x = 331,351,886.95

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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.