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Finding the Fourth Proportional to 201,466,019.20, 302,199,028.80 and 55,899,299.20

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Solution

The fourth proportional to 201,466,019.20, 302,199,028.80 and 55,899,299.20 is: 83,848,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,466,019.20 : 302,199,028.80 = 55,899,299.20 : x
  2. Step 2: Convert to fraction form
    201,466,019.20/302,199,028.80 = 55,899,299.20/x
  3. Step 3: Cross multiply
    201,466,019.20x = 302,199,028.80 × 55,899,299.20
  4. Step 4: Simplify right side
    201,466,019.20x = 16,892,713,928,840,618
  5. Step 5: Solve for x
    x = 16,892,713,928,840,618/201,466,019.20
  6. Step 6: Final answer
    x = 83,848,948.80

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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.