Home / 456,778,392.81-685,194,004.53-129,226,467.48

Finding the Fourth Proportional to 456,778,392.81, 685,194,004.53 and 129,226,467.48

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Solution

The fourth proportional to 456,778,392.81, 685,194,004.53 and 129,226,467.48 is: 193,847,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,778,392.81 : 685,194,004.53 = 129,226,467.48 : x
  2. Step 2: Convert to fraction form
    456,778,392.81/685,194,004.53 = 129,226,467.48/x
  3. Step 3: Cross multiply
    456,778,392.81x = 685,194,004.53 × 129,226,467.48
  4. Step 4: Simplify right side
    456,778,392.81x = 88,545,200,743,887,024
  5. Step 5: Solve for x
    x = 88,545,200,743,887,024/456,778,392.81
  6. Step 6: Final answer
    x = 193,847,174.34

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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.