Home / 12,302,403.40-18,453,605.10-11,686,544.20

Finding the Fourth Proportional to 12,302,403.40, 18,453,605.10 and 11,686,544.20

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Solution

The fourth proportional to 12,302,403.40, 18,453,605.10 and 11,686,544.20 is: 17,529,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,403.40 : 18,453,605.10 = 11,686,544.20 : x
  2. Step 2: Convert to fraction form
    12,302,403.40/18,453,605.10 = 11,686,544.20/x
  3. Step 3: Cross multiply
    12,302,403.40x = 18,453,605.10 × 11,686,544.20
  4. Step 4: Simplify right side
    12,302,403.40x = 215,658,871,650,495.44
  5. Step 5: Solve for x
    x = 215,658,871,650,495.44/12,302,403.40
  6. Step 6: Final answer
    x = 17,529,816.30

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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.