Home / 8,789,157.66-13,170,496.89-7,831,328.68

Finding the Fourth Proportional to 8,789,157.66, 13,170,496.89 and 7,831,328.68

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Solution

The fourth proportional to 8,789,157.66, 13,170,496.89 and 7,831,328.68 is: 11,735,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789,157.66 : 13,170,496.89 = 7,831,328.68 : x
  2. Step 2: Convert to fraction form
    8,789,157.66/13,170,496.89 = 7,831,328.68/x
  3. Step 3: Cross multiply
    8,789,157.66x = 13,170,496.89 × 7,831,328.68
  4. Step 4: Simplify right side
    8,789,157.66x = 103,142,489,989,362.03
  5. Step 5: Solve for x
    x = 103,142,489,989,362.03/8,789,157.66
  6. Step 6: Final answer
    x = 11,735,196.25

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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.