Home / 743,238,195.69-1,025,417,662.41-421,331,628.34

Finding the Fourth Proportional to 743,238,195.69, 1,025,417,662.41 and 421,331,628.34

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Solution

The fourth proportional to 743,238,195.69, 1,025,417,662.41 and 421,331,628.34 is: 581,295,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,238,195.69 : 1,025,417,662.41 = 421,331,628.34 : x
  2. Step 2: Convert to fraction form
    743,238,195.69/1,025,417,662.41 = 421,331,628.34/x
  3. Step 3: Cross multiply
    743,238,195.69x = 1,025,417,662.41 × 421,331,628.34
  4. Step 4: Simplify right side
    743,238,195.69x = 432,040,893,434,642,432
  5. Step 5: Solve for x
    x = 432,040,893,434,642,432/743,238,195.69
  6. Step 6: Final answer
    x = 581,295,331.61

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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.