Home / 469,105,386.12-647,353,107.44-257,411,566.37

Finding the Fourth Proportional to 469,105,386.12, 647,353,107.44 and 257,411,566.37

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Solution

The fourth proportional to 469,105,386.12, 647,353,107.44 and 257,411,566.37 is: 355,221,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,105,386.12 : 647,353,107.44 = 257,411,566.37 : x
  2. Step 2: Convert to fraction form
    469,105,386.12/647,353,107.44 = 257,411,566.37/x
  3. Step 3: Cross multiply
    469,105,386.12x = 647,353,107.44 × 257,411,566.37
  4. Step 4: Simplify right side
    469,105,386.12x = 166,636,177,379,973,760
  5. Step 5: Solve for x
    x = 166,636,177,379,973,760/469,105,386.12
  6. Step 6: Final answer
    x = 355,221,198.29

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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.