Home / 630,375,015.82-945,930,990.66-455,325,436.30

Finding the Fourth Proportional to 630,375,015.82, 945,930,990.66 and 455,325,436.30

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Solution

The fourth proportional to 630,375,015.82, 945,930,990.66 and 455,325,436.30 is: 683,254,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,375,015.82 : 945,930,990.66 = 455,325,436.30 : x
  2. Step 2: Convert to fraction form
    630,375,015.82/945,930,990.66 = 455,325,436.30/x
  3. Step 3: Cross multiply
    630,375,015.82x = 945,930,990.66 × 455,325,436.30
  4. Step 4: Simplify right side
    630,375,015.82x = 430,706,441,031,955,712
  5. Step 5: Solve for x
    x = 430,706,441,031,955,712/630,375,015.82
  6. Step 6: Final answer
    x = 683,254,301.36

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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.