Home / 281,182,120.79-388,001,786.23-155,731,030.29

Finding the Fourth Proportional to 281,182,120.79, 388,001,786.23 and 155,731,030.29

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Solution

The fourth proportional to 281,182,120.79, 388,001,786.23 and 155,731,030.29 is: 214,892,460.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,182,120.79 : 388,001,786.23 = 155,731,030.29 : x
  2. Step 2: Convert to fraction form
    281,182,120.79/388,001,786.23 = 155,731,030.29/x
  3. Step 3: Cross multiply
    281,182,120.79x = 388,001,786.23 × 155,731,030.29
  4. Step 4: Simplify right side
    281,182,120.79x = 60,423,917,923,958,232
  5. Step 5: Solve for x
    x = 60,423,917,923,958,232/281,182,120.79
  6. Step 6: Final answer
    x = 214,892,460.99

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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.