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Finding the Fourth Proportional to 9,295,903.40, 13,943,855.10 and 8,658,174.20

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Solution

The fourth proportional to 9,295,903.40, 13,943,855.10 and 8,658,174.20 is: 12,987,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,295,903.40 : 13,943,855.10 = 8,658,174.20 : x
  2. Step 2: Convert to fraction form
    9,295,903.40/13,943,855.10 = 8,658,174.20/x
  3. Step 3: Cross multiply
    9,295,903.40x = 13,943,855.10 × 8,658,174.20
  4. Step 4: Simplify right side
    9,295,903.40x = 120,728,326,475,358.41
  5. Step 5: Solve for x
    x = 120,728,326,475,358.41/9,295,903.40
  6. Step 6: Final answer
    x = 12,987,261.30

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Similar ratio
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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.