Home / 13,122,318.90-19,683,478.35-12,325,157.40

Finding the Fourth Proportional to 13,122,318.90, 19,683,478.35 and 12,325,157.40

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Solution

The fourth proportional to 13,122,318.90, 19,683,478.35 and 12,325,157.40 is: 18,487,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,318.90 : 19,683,478.35 = 12,325,157.40 : x
  2. Step 2: Convert to fraction form
    13,122,318.90/19,683,478.35 = 12,325,157.40/x
  3. Step 3: Cross multiply
    13,122,318.90x = 19,683,478.35 × 12,325,157.40
  4. Step 4: Simplify right side
    13,122,318.90x = 242,601,968,843,242.31
  5. Step 5: Solve for x
    x = 242,601,968,843,242.31/13,122,318.90
  6. Step 6: Final answer
    x = 18,487,736.10

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1.5x scale

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.