Home / 807,788,496.30-1,211,682,744.45-316,338,431.55

Finding the Fourth Proportional to 807,788,496.30, 1,211,682,744.45 and 316,338,431.55

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Solution

The fourth proportional to 807,788,496.30, 1,211,682,744.45 and 316,338,431.55 is: 474,507,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,788,496.30 : 1,211,682,744.45 = 316,338,431.55 : x
  2. Step 2: Convert to fraction form
    807,788,496.30/1,211,682,744.45 = 316,338,431.55/x
  3. Step 3: Cross multiply
    807,788,496.30x = 1,211,682,744.45 × 316,338,431.55
  4. Step 4: Simplify right side
    807,788,496.30x = 383,301,818,915,512,512
  5. Step 5: Solve for x
    x = 383,301,818,915,512,512/807,788,496.30
  6. Step 6: Final answer
    x = 474,507,647.33

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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.