Home / 398,427,571.46-549,830,782.29-222,226,923.96

Finding the Fourth Proportional to 398,427,571.46, 549,830,782.29 and 222,226,923.96

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Solution

The fourth proportional to 398,427,571.46, 549,830,782.29 and 222,226,923.96 is: 306,673,564.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,427,571.46 : 549,830,782.29 = 222,226,923.96 : x
  2. Step 2: Convert to fraction form
    398,427,571.46/549,830,782.29 = 222,226,923.96/x
  3. Step 3: Cross multiply
    398,427,571.46x = 549,830,782.29 × 222,226,923.96
  4. Step 4: Simplify right side
    398,427,571.46x = 122,187,203,446,827,136
  5. Step 5: Solve for x
    x = 122,187,203,446,827,136/398,427,571.46
  6. Step 6: Final answer
    x = 306,673,564.28

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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.