Home / 397,303,159-548,274,008.20-218,683,228.43

Finding the Fourth Proportional to 397,303,159, 548,274,008.20 and 218,683,228.43

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Solution

The fourth proportional to 397,303,159, 548,274,008.20 and 218,683,228.43 is: 301,780,460.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,303,159 : 548,274,008.20 = 218,683,228.43 : x
  2. Step 2: Convert to fraction form
    397,303,159/548,274,008.20 = 218,683,228.43/x
  3. Step 3: Cross multiply
    397,303,159x = 548,274,008.20 × 218,683,228.43
  4. Step 4: Simplify right side
    397,303,159x = 119,898,330,177,432,304
  5. Step 5: Solve for x
    x = 119,898,330,177,432,304/397,303,159
  6. Step 6: Final answer
    x = 301,780,460.24

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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.