Home / 13,280,452.06-18,326,540-7,399,782.40

Finding the Fourth Proportional to 13,280,452.06, 18,326,540 and 7,399,782.40

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Solution

The fourth proportional to 13,280,452.06, 18,326,540 and 7,399,782.40 is: 10,211,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,452.06 : 18,326,540 = 7,399,782.40 : x
  2. Step 2: Convert to fraction form
    13,280,452.06/18,326,540 = 7,399,782.40/x
  3. Step 3: Cross multiply
    13,280,452.06x = 18,326,540 × 7,399,782.40
  4. Step 4: Simplify right side
    13,280,452.06x = 135,612,408,144,896
  5. Step 5: Solve for x
    x = 135,612,408,144,896/13,280,452.06
  6. Step 6: Final answer
    x = 10,211,430.12

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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.