Home / 354,305,762.40-531,458,643.60-263,606,498.40

Finding the Fourth Proportional to 354,305,762.40, 531,458,643.60 and 263,606,498.40

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Solution

The fourth proportional to 354,305,762.40, 531,458,643.60 and 263,606,498.40 is: 395,409,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,305,762.40 : 531,458,643.60 = 263,606,498.40 : x
  2. Step 2: Convert to fraction form
    354,305,762.40/531,458,643.60 = 263,606,498.40/x
  3. Step 3: Cross multiply
    354,305,762.40x = 531,458,643.60 × 263,606,498.40
  4. Step 4: Simplify right side
    354,305,762.40x = 140,095,952,083,809,584
  5. Step 5: Solve for x
    x = 140,095,952,083,809,584/354,305,762.40
  6. Step 6: Final answer
    x = 395,409,747.60

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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.