Home / 281,010,120.12-387,798,556.83-153,848,676.76

Finding the Fourth Proportional to 281,010,120.12, 387,798,556.83 and 153,848,676.76

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Solution

The fourth proportional to 281,010,120.12, 387,798,556.83 and 153,848,676.76 is: 212,313,687.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,010,120.12 : 387,798,556.83 = 153,848,676.76 : x
  2. Step 2: Convert to fraction form
    281,010,120.12/387,798,556.83 = 153,848,676.76/x
  3. Step 3: Cross multiply
    281,010,120.12x = 387,798,556.83 × 153,848,676.76
  4. Step 4: Simplify right side
    281,010,120.12x = 59,662,294,817,733,152
  5. Step 5: Solve for x
    x = 59,662,294,817,733,152/281,010,120.12
  6. Step 6: Final answer
    x = 212,313,687.47

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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.