Home / 305,004,673.40-420,910,710.54-165,775,393.40

Finding the Fourth Proportional to 305,004,673.40, 420,910,710.54 and 165,775,393.40

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Solution

The fourth proportional to 305,004,673.40, 420,910,710.54 and 165,775,393.40 is: 228,772,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,004,673.40 : 420,910,710.54 = 165,775,393.40 : x
  2. Step 2: Convert to fraction form
    305,004,673.40/420,910,710.54 = 165,775,393.40/x
  3. Step 3: Cross multiply
    305,004,673.40x = 420,910,710.54 × 165,775,393.40
  4. Step 4: Simplify right side
    305,004,673.40x = 69,776,638,626,042,032
  5. Step 5: Solve for x
    x = 69,776,638,626,042,032/305,004,673.40
  6. Step 6: Final answer
    x = 228,772,358.96

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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.