Home / 13,723,638.57-18,938,765.52-7,528,697.82

Finding the Fourth Proportional to 13,723,638.57, 18,938,765.52 and 7,528,697.82

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Solution

The fourth proportional to 13,723,638.57, 18,938,765.52 and 7,528,697.82 is: 10,389,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723,638.57 : 18,938,765.52 = 7,528,697.82 : x
  2. Step 2: Convert to fraction form
    13,723,638.57/18,938,765.52 = 7,528,697.82/x
  3. Step 3: Cross multiply
    13,723,638.57x = 18,938,765.52 × 7,528,697.82
  4. Step 4: Simplify right side
    13,723,638.57x = 142,584,242,683,915.16
  5. Step 5: Solve for x
    x = 142,584,242,683,915.16/13,723,638.57
  6. Step 6: Final answer
    x = 10,389,682.15

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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.