Home / 304,977,201.60-420,871,800.24-165,747,970.20

Finding the Fourth Proportional to 304,977,201.60, 420,871,800.24 and 165,747,970.20

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Solution

The fourth proportional to 304,977,201.60, 420,871,800.24 and 165,747,970.20 is: 228,733,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,977,201.60 : 420,871,800.24 = 165,747,970.20 : x
  2. Step 2: Convert to fraction form
    304,977,201.60/420,871,800.24 = 165,747,970.20/x
  3. Step 3: Cross multiply
    304,977,201.60x = 420,871,800.24 × 165,747,970.20
  4. Step 4: Simplify right side
    304,977,201.60x = 69,758,646,604,199,872
  5. Step 5: Solve for x
    x = 69,758,646,604,199,872/304,977,201.60
  6. Step 6: Final answer
    x = 228,733,971.71

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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.