Home / 30,519,882-42,107,020.56-18,913,210.56

Finding the Fourth Proportional to 30,519,882, 42,107,020.56 and 18,913,210.56

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Solution

The fourth proportional to 30,519,882, 42,107,020.56 and 18,913,210.56 is: 26,093,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519,882 : 42,107,020.56 = 18,913,210.56 : x
  2. Step 2: Convert to fraction form
    30,519,882/42,107,020.56 = 18,913,210.56/x
  3. Step 3: Cross multiply
    30,519,882x = 42,107,020.56 × 18,913,210.56
  4. Step 4: Simplify right side
    30,519,882x = 796,378,945,905,529.12
  5. Step 5: Solve for x
    x = 796,378,945,905,529.12/30,519,882
  6. Step 6: Final answer
    x = 26,093,775.39

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1.5x scale

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.