Home / 1,188,348,815.85-1,782,728,683.53-401,408,199.51

Finding the Fourth Proportional to 1,188,348,815.85, 1,782,728,683.53 and 401,408,199.51

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Solution

The fourth proportional to 1,188,348,815.85, 1,782,728,683.53 and 401,408,199.51 is: 602,181,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,348,815.85 : 1,782,728,683.53 = 401,408,199.51 : x
  2. Step 2: Convert to fraction form
    1,188,348,815.85/1,782,728,683.53 = 401,408,199.51/x
  3. Step 3: Cross multiply
    1,188,348,815.85x = 1,782,728,683.53 × 401,408,199.51
  4. Step 4: Simplify right side
    1,188,348,815.85x = 715,601,911,070,609,920
  5. Step 5: Solve for x
    x = 715,601,911,070,609,920/1,188,348,815.85
  6. Step 6: Final answer
    x = 602,181,700.80

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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.