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Finding the Fourth Proportional to 210,004,015.20, 315,006,022.80 and 210,004,015.20

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Solution

The fourth proportional to 210,004,015.20, 315,006,022.80 and 210,004,015.20 is: 315,006,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,004,015.20 : 315,006,022.80 = 210,004,015.20 : x
  2. Step 2: Convert to fraction form
    210,004,015.20/315,006,022.80 = 210,004,015.20/x
  3. Step 3: Cross multiply
    210,004,015.20x = 315,006,022.80 × 210,004,015.20
  4. Step 4: Simplify right side
    210,004,015.20x = 66,152,529,600,182,744
  5. Step 5: Solve for x
    x = 66,152,529,600,182,744/210,004,015.20
  6. Step 6: Final answer
    x = 315,006,022.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.