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Finding the Fourth Proportional to 21,996,219.70, 30,858,480.50 and 21,996,219.70

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Solution

The fourth proportional to 21,996,219.70, 30,858,480.50 and 21,996,219.70 is: 30,858,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996,219.70 : 30,858,480.50 = 21,996,219.70 : x
  2. Step 2: Convert to fraction form
    21,996,219.70/30,858,480.50 = 21,996,219.70/x
  3. Step 3: Cross multiply
    21,996,219.70x = 30,858,480.50 × 21,996,219.70
  4. Step 4: Simplify right side
    21,996,219.70x = 678,769,916,686,165.88
  5. Step 5: Solve for x
    x = 678,769,916,686,165.88/21,996,219.70
  6. Step 6: Final answer
    x = 30,858,480.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.