Home / 13,280,453.06-18,326,541.38-7,399,783.40

Finding the Fourth Proportional to 13,280,453.06, 18,326,541.38 and 7,399,783.40

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Solution

The fourth proportional to 13,280,453.06, 18,326,541.38 and 7,399,783.40 is: 10,211,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,453.06 : 18,326,541.38 = 7,399,783.40 : x
  2. Step 2: Convert to fraction form
    13,280,453.06/18,326,541.38 = 7,399,783.40/x
  3. Step 3: Cross multiply
    13,280,453.06x = 18,326,541.38 × 7,399,783.40
  4. Step 4: Simplify right side
    13,280,453.06x = 135,612,436,683,137.09
  5. Step 5: Solve for x
    x = 135,612,436,683,137.09/13,280,453.06
  6. Step 6: Final answer
    x = 10,211,431.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.