Home / 18,626,671.94-25,682,810.49-12,749,143.67

Finding the Fourth Proportional to 18,626,671.94, 25,682,810.49 and 12,749,143.67

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Solution

The fourth proportional to 18,626,671.94, 25,682,810.49 and 12,749,143.67 is: 17,578,762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626,671.94 : 25,682,810.49 = 12,749,143.67 : x
  2. Step 2: Convert to fraction form
    18,626,671.94/25,682,810.49 = 12,749,143.67/x
  3. Step 3: Cross multiply
    18,626,671.94x = 25,682,810.49 × 12,749,143.67
  4. Step 4: Simplify right side
    18,626,671.94x = 327,433,840,657,979
  5. Step 5: Solve for x
    x = 327,433,840,657,979/18,626,671.94
  6. Step 6: Final answer
    x = 17,578,762.42

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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.