Home / 831,521,615.96-1,147,485,940.62-460,235,675.72

Finding the Fourth Proportional to 831,521,615.96, 1,147,485,940.62 and 460,235,675.72

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Solution

The fourth proportional to 831,521,615.96, 1,147,485,940.62 and 460,235,675.72 is: 635,117,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,521,615.96 : 1,147,485,940.62 = 460,235,675.72 : x
  2. Step 2: Convert to fraction form
    831,521,615.96/1,147,485,940.62 = 460,235,675.72/x
  3. Step 3: Cross multiply
    831,521,615.96x = 1,147,485,940.62 × 460,235,675.72
  4. Step 4: Simplify right side
    831,521,615.96x = 528,113,967,260,445,504
  5. Step 5: Solve for x
    x = 528,113,967,260,445,504/831,521,615.96
  6. Step 6: Final answer
    x = 635,117,544.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.