Home / 12,458,464.40-18,687,696.60-12,178,528.40

Finding the Fourth Proportional to 12,458,464.40, 18,687,696.60 and 12,178,528.40

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Solution

The fourth proportional to 12,458,464.40, 18,687,696.60 and 12,178,528.40 is: 18,267,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458,464.40 : 18,687,696.60 = 12,178,528.40 : x
  2. Step 2: Convert to fraction form
    12,458,464.40/18,687,696.60 = 12,178,528.40/x
  3. Step 3: Cross multiply
    12,458,464.40x = 18,687,696.60 × 12,178,528.40
  4. Step 4: Simplify right side
    12,458,464.40x = 227,588,643,773,683.47
  5. Step 5: Solve for x
    x = 227,588,643,773,683.47/12,458,464.40
  6. Step 6: Final answer
    x = 18,267,792.60

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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.