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Finding the Fourth Proportional to 12,804,914.40, 19,221,368.40 and 8,018,008.80

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Solution

The fourth proportional to 12,804,914.40, 19,221,368.40 and 8,018,008.80 is: 12,035,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,804,914.40 : 19,221,368.40 = 8,018,008.80 : x
  2. Step 2: Convert to fraction form
    12,804,914.40/19,221,368.40 = 8,018,008.80/x
  3. Step 3: Cross multiply
    12,804,914.40x = 19,221,368.40 × 8,018,008.80
  4. Step 4: Simplify right side
    12,804,914.40x = 154,117,100,979,241.91
  5. Step 5: Solve for x
    x = 154,117,100,979,241.91/12,804,914.40
  6. Step 6: Final answer
    x = 12,035,777.53

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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.