Home / 21,863,053.50-30,171,015.99-12,205,261.50

Finding the Fourth Proportional to 21,863,053.50, 30,171,015.99 and 12,205,261.50

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Solution

The fourth proportional to 21,863,053.50, 30,171,015.99 and 12,205,261.50 is: 16,843,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863,053.50 : 30,171,015.99 = 12,205,261.50 : x
  2. Step 2: Convert to fraction form
    21,863,053.50/30,171,015.99 = 12,205,261.50/x
  3. Step 3: Cross multiply
    21,863,053.50x = 30,171,015.99 × 12,205,261.50
  4. Step 4: Simplify right side
    21,863,053.50x = 368,245,139,878,631.38
  5. Step 5: Solve for x
    x = 368,245,139,878,631.38/21,863,053.50
  6. Step 6: Final answer
    x = 16,843,262.08

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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.