Home / 20,512,208.70-30,768,313.05-9,895,376.70

Finding the Fourth Proportional to 20,512,208.70, 30,768,313.05 and 9,895,376.70

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Solution

The fourth proportional to 20,512,208.70, 30,768,313.05 and 9,895,376.70 is: 14,843,065.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,208.70 : 30,768,313.05 = 9,895,376.70 : x
  2. Step 2: Convert to fraction form
    20,512,208.70/30,768,313.05 = 9,895,376.70/x
  3. Step 3: Cross multiply
    20,512,208.70x = 30,768,313.05 × 9,895,376.70
  4. Step 4: Simplify right side
    20,512,208.70x = 304,464,048,053,275.94
  5. Step 5: Solve for x
    x = 304,464,048,053,275.94/20,512,208.70
  6. Step 6: Final answer
    x = 14,843,065.05

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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.