Home / 19,968,008.40-29,952,012.60-12,303,982.80

Finding the Fourth Proportional to 19,968,008.40, 29,952,012.60 and 12,303,982.80

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Solution

The fourth proportional to 19,968,008.40, 29,952,012.60 and 12,303,982.80 is: 18,455,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,968,008.40 : 29,952,012.60 = 12,303,982.80 : x
  2. Step 2: Convert to fraction form
    19,968,008.40/29,952,012.60 = 12,303,982.80/x
  3. Step 3: Cross multiply
    19,968,008.40x = 29,952,012.60 × 12,303,982.80
  4. Step 4: Simplify right side
    19,968,008.40x = 368,529,047,855,783.31
  5. Step 5: Solve for x
    x = 368,529,047,855,783.31/19,968,008.40
  6. Step 6: Final answer
    x = 18,455,974.20

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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.