Home / 12,585,471,170.40-18,899,705,840.40-8,242,656,040.80

Finding the Fourth Proportional to 12,585,471,170.40, 18,899,705,840.40 and 8,242,656,040.80

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Solution

The fourth proportional to 12,585,471,170.40, 18,899,705,840.40 and 8,242,656,040.80 is: 12,378,064,548.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585,471,170.40 : 18,899,705,840.40 = 8,242,656,040.80 : x
  2. Step 2: Convert to fraction form
    12,585,471,170.40/18,899,705,840.40 = 8,242,656,040.80/x
  3. Step 3: Cross multiply
    12,585,471,170.40x = 18,899,705,840.40 × 8,242,656,040.80
  4. Step 4: Simplify right side
    12,585,471,170.40x = 155,783,774,514,716,114,944
  5. Step 5: Solve for x
    x = 155,783,774,514,716,114,944/12,585,471,170.40
  6. Step 6: Final answer
    x = 12,378,064,548.04

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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.