Home / 12,636,021.80-18,954,032.70-12,510,050.60

Finding the Fourth Proportional to 12,636,021.80, 18,954,032.70 and 12,510,050.60

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Solution

The fourth proportional to 12,636,021.80, 18,954,032.70 and 12,510,050.60 is: 18,765,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,021.80 : 18,954,032.70 = 12,510,050.60 : x
  2. Step 2: Convert to fraction form
    12,636,021.80/18,954,032.70 = 12,510,050.60/x
  3. Step 3: Cross multiply
    12,636,021.80x = 18,954,032.70 × 12,510,050.60
  4. Step 4: Simplify right side
    12,636,021.80x = 237,115,908,151,054.59
  5. Step 5: Solve for x
    x = 237,115,908,151,054.59/12,636,021.80
  6. Step 6: Final answer
    x = 18,765,075.90

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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.