Home / 485,886,761,749.65-670,269,517,743.75-300,429,187,347.36

Finding the Fourth Proportional to 485,886,761,749.65, 670,269,517,743.75 and 300,429,187,347.36

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Solution

The fourth proportional to 485,886,761,749.65, 670,269,517,743.75 and 300,429,187,347.36 is: 414,435,095,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,886,761,749.65 : 670,269,517,743.75 = 300,429,187,347.36 : x
  2. Step 2: Convert to fraction form
    485,886,761,749.65/670,269,517,743.75 = 300,429,187,347.36/x
  3. Step 3: Cross multiply
    485,886,761,749.65x = 670,269,517,743.75 × 300,429,187,347.36
  4. Step 4: Simplify right side
    485,886,761,749.65x = 201,368,526,519,461,711,183,872
  5. Step 5: Solve for x
    x = 201,368,526,519,461,711,183,872/485,886,761,749.65
  6. Step 6: Final answer
    x = 414,435,095,523.79

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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.