Home / 324,809,008.20-487,242,142.80-91,641,762.60

Finding the Fourth Proportional to 324,809,008.20, 487,242,142.80 and 91,641,762.60

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Solution

The fourth proportional to 324,809,008.20, 487,242,142.80 and 91,641,762.60 is: 137,470,721.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,809,008.20 : 487,242,142.80 = 91,641,762.60 : x
  2. Step 2: Convert to fraction form
    324,809,008.20/487,242,142.80 = 91,641,762.60/x
  3. Step 3: Cross multiply
    324,809,008.20x = 487,242,142.80 × 91,641,762.60
  4. Step 4: Simplify right side
    324,809,008.20x = 44,651,728,779,192,896
  5. Step 5: Solve for x
    x = 44,651,728,779,192,896/324,809,008.20
  6. Step 6: Final answer
    x = 137,470,721.72

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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.