Home / 281,247,987.47-421,881,548.82-133,619,357.48

Finding the Fourth Proportional to 281,247,987.47, 421,881,548.82 and 133,619,357.48

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Solution

The fourth proportional to 281,247,987.47, 421,881,548.82 and 133,619,357.48 is: 200,433,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,247,987.47 : 421,881,548.82 = 133,619,357.48 : x
  2. Step 2: Convert to fraction form
    281,247,987.47/421,881,548.82 = 133,619,357.48/x
  3. Step 3: Cross multiply
    281,247,987.47x = 421,881,548.82 × 133,619,357.48
  4. Step 4: Simplify right side
    281,247,987.47x = 56,371,541,483,886,240
  5. Step 5: Solve for x
    x = 56,371,541,483,886,240/281,247,987.47
  6. Step 6: Final answer
    x = 200,433,581.74

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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.