Home / 12,131,640,400.80-18,197,460,601.20-10,172,536,298.40

Finding the Fourth Proportional to 12,131,640,400.80, 18,197,460,601.20 and 10,172,536,298.40

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Solution

The fourth proportional to 12,131,640,400.80, 18,197,460,601.20 and 10,172,536,298.40 is: 15,258,804,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,640,400.80 : 18,197,460,601.20 = 10,172,536,298.40 : x
  2. Step 2: Convert to fraction form
    12,131,640,400.80/18,197,460,601.20 = 10,172,536,298.40/x
  3. Step 3: Cross multiply
    12,131,640,400.80x = 18,197,460,601.20 × 10,172,536,298.40
  4. Step 4: Simplify right side
    12,131,640,400.80x = 185,114,328,504,410,898,432
  5. Step 5: Solve for x
    x = 185,114,328,504,410,898,432/12,131,640,400.80
  6. Step 6: Final answer
    x = 15,258,804,447.60

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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.