Home / 456,480,912.81-685,164,143.81-220,296,647.28

Finding the Fourth Proportional to 456,480,912.81, 685,164,143.81 and 220,296,647.28

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Solution

The fourth proportional to 456,480,912.81, 685,164,143.81 and 220,296,647.28 is: 330,658,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,480,912.81 : 685,164,143.81 = 220,296,647.28 : x
  2. Step 2: Convert to fraction form
    456,480,912.81/685,164,143.81 = 220,296,647.28/x
  3. Step 3: Cross multiply
    456,480,912.81x = 685,164,143.81 × 220,296,647.28
  4. Step 4: Simplify right side
    456,480,912.81x = 150,939,363,717,814,752
  5. Step 5: Solve for x
    x = 150,939,363,717,814,752/456,480,912.81
  6. Step 6: Final answer
    x = 330,658,652.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.