Home / 355,228,993.88-530,241,654.40-313,294,313.18

Finding the Fourth Proportional to 355,228,993.88, 530,241,654.40 and 313,294,313.18

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Solution

The fourth proportional to 355,228,993.88, 530,241,654.40 and 313,294,313.18 is: 467,646,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,228,993.88 : 530,241,654.40 = 313,294,313.18 : x
  2. Step 2: Convert to fraction form
    355,228,993.88/530,241,654.40 = 313,294,313.18/x
  3. Step 3: Cross multiply
    355,228,993.88x = 530,241,654.40 × 313,294,313.18
  4. Step 4: Simplify right side
    355,228,993.88x = 166,121,694,934,674,912
  5. Step 5: Solve for x
    x = 166,121,694,934,674,912/355,228,993.88
  6. Step 6: Final answer
    x = 467,646,779.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.