Home / 12,529,912.80-18,752,878.80-11,018,258.40

Finding the Fourth Proportional to 12,529,912.80, 18,752,878.80 and 11,018,258.40

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Solution

The fourth proportional to 12,529,912.80, 18,752,878.80 and 11,018,258.40 is: 16,490,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529,912.80 : 18,752,878.80 = 11,018,258.40 : x
  2. Step 2: Convert to fraction form
    12,529,912.80/18,752,878.80 = 11,018,258.40/x
  3. Step 3: Cross multiply
    12,529,912.80x = 18,752,878.80 × 11,018,258.40
  4. Step 4: Simplify right side
    12,529,912.80x = 206,624,064,362,281.94
  5. Step 5: Solve for x
    x = 206,624,064,362,281.94/12,529,912.80
  6. Step 6: Final answer
    x = 16,490,463.08

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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.