Home / 641,525,628.72-885,305,730.87-348,170,196.72

Finding the Fourth Proportional to 641,525,628.72, 885,305,730.87 and 348,170,196.72

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Solution

The fourth proportional to 641,525,628.72, 885,305,730.87 and 348,170,196.72 is: 480,475,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,525,628.72 : 885,305,730.87 = 348,170,196.72 : x
  2. Step 2: Convert to fraction form
    641,525,628.72/885,305,730.87 = 348,170,196.72/x
  3. Step 3: Cross multiply
    641,525,628.72x = 885,305,730.87 × 348,170,196.72
  4. Step 4: Simplify right side
    641,525,628.72x = 308,237,070,474,351,296
  5. Step 5: Solve for x
    x = 308,237,070,474,351,296/641,525,628.72
  6. Step 6: Final answer
    x = 480,475,068.61

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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.