Home / 12,456,679.60-18,685,019.40-9,268,033.60

Finding the Fourth Proportional to 12,456,679.60, 18,685,019.40 and 9,268,033.60

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Solution

The fourth proportional to 12,456,679.60, 18,685,019.40 and 9,268,033.60 is: 13,902,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,679.60 : 18,685,019.40 = 9,268,033.60 : x
  2. Step 2: Convert to fraction form
    12,456,679.60/18,685,019.40 = 9,268,033.60/x
  3. Step 3: Cross multiply
    12,456,679.60x = 18,685,019.40 × 9,268,033.60
  4. Step 4: Simplify right side
    12,456,679.60x = 173,173,387,615,851.81
  5. Step 5: Solve for x
    x = 173,173,387,615,851.81/12,456,679.60
  6. Step 6: Final answer
    x = 13,902,050.40

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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.