Home / 21,863,028-30,170,980.80-12,205,236

Finding the Fourth Proportional to 21,863,028, 30,170,980.80 and 12,205,236

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Solution

The fourth proportional to 21,863,028, 30,170,980.80 and 12,205,236 is: 16,843,226.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863,028 : 30,170,980.80 = 12,205,236 : x
  2. Step 2: Convert to fraction form
    21,863,028/30,170,980.80 = 12,205,236/x
  3. Step 3: Cross multiply
    21,863,028x = 30,170,980.80 × 12,205,236
  4. Step 4: Simplify right side
    21,863,028x = 368,243,941,015,468.81
  5. Step 5: Solve for x
    x = 368,243,941,015,468.81/21,863,028
  6. Step 6: Final answer
    x = 16,843,226.89

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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.