Home / 12,456,659.60-18,684,989.40-9,268,013.60

Finding the Fourth Proportional to 12,456,659.60, 18,684,989.40 and 9,268,013.60

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Solution

The fourth proportional to 12,456,659.60, 18,684,989.40 and 9,268,013.60 is: 13,902,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,659.60 : 18,684,989.40 = 9,268,013.60 : x
  2. Step 2: Convert to fraction form
    12,456,659.60/18,684,989.40 = 9,268,013.60/x
  3. Step 3: Cross multiply
    12,456,659.60x = 18,684,989.40 × 9,268,013.60
  4. Step 4: Simplify right side
    12,456,659.60x = 173,172,735,875,055.81
  5. Step 5: Solve for x
    x = 173,172,735,875,055.81/12,456,659.60
  6. Step 6: Final answer
    x = 13,902,020.40

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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.