Home / 257,429,999.70-386,144,999.55-229,212,450.90

Finding the Fourth Proportional to 257,429,999.70, 386,144,999.55 and 229,212,450.90

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Solution

The fourth proportional to 257,429,999.70, 386,144,999.55 and 229,212,450.90 is: 343,818,676.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,429,999.70 : 386,144,999.55 = 229,212,450.90 : x
  2. Step 2: Convert to fraction form
    257,429,999.70/386,144,999.55 = 229,212,450.90/x
  3. Step 3: Cross multiply
    257,429,999.70x = 386,144,999.55 × 229,212,450.90
  4. Step 4: Simplify right side
    257,429,999.70x = 88,509,241,749,634,896
  5. Step 5: Solve for x
    x = 88,509,241,749,634,896/257,429,999.70
  6. Step 6: Final answer
    x = 343,818,676.35

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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.