Home / 30,519,877.50-42,107,014.50-18,913,206.06

Finding the Fourth Proportional to 30,519,877.50, 42,107,014.50 and 18,913,206.06

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Solution

The fourth proportional to 30,519,877.50, 42,107,014.50 and 18,913,206.06 is: 26,093,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519,877.50 : 42,107,014.50 = 18,913,206.06 : x
  2. Step 2: Convert to fraction form
    30,519,877.50/42,107,014.50 = 18,913,206.06/x
  3. Step 3: Cross multiply
    30,519,877.50x = 42,107,014.50 × 18,913,206.06
  4. Step 4: Simplify right side
    30,519,877.50x = 796,378,641,809,907.88
  5. Step 5: Solve for x
    x = 796,378,641,809,907.88/30,519,877.50
  6. Step 6: Final answer
    x = 26,093,769.28

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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.