Home / 12,652,886.80-18,979,330.20-9,268,771.60

Finding the Fourth Proportional to 12,652,886.80, 18,979,330.20 and 9,268,771.60

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Solution

The fourth proportional to 12,652,886.80, 18,979,330.20 and 9,268,771.60 is: 13,903,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652,886.80 : 18,979,330.20 = 9,268,771.60 : x
  2. Step 2: Convert to fraction form
    12,652,886.80/18,979,330.20 = 9,268,771.60/x
  3. Step 3: Cross multiply
    12,652,886.80x = 18,979,330.20 × 9,268,771.60
  4. Step 4: Simplify right side
    12,652,886.80x = 175,915,076,744,782.31
  5. Step 5: Solve for x
    x = 175,915,076,744,782.31/12,652,886.80
  6. Step 6: Final answer
    x = 13,903,157.40

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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.