Home / 28,273,341.80-42,410,012.70-13,898,628.20

Finding the Fourth Proportional to 28,273,341.80, 42,410,012.70 and 13,898,628.20

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Solution

The fourth proportional to 28,273,341.80, 42,410,012.70 and 13,898,628.20 is: 20,847,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273,341.80 : 42,410,012.70 = 13,898,628.20 : x
  2. Step 2: Convert to fraction form
    28,273,341.80/42,410,012.70 = 13,898,628.20/x
  3. Step 3: Cross multiply
    28,273,341.80x = 42,410,012.70 × 13,898,628.20
  4. Step 4: Simplify right side
    28,273,341.80x = 589,440,998,474,578.12
  5. Step 5: Solve for x
    x = 589,440,998,474,578.12/28,273,341.80
  6. Step 6: Final answer
    x = 20,847,942.30

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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.