Home / 257,111,161.85-354,835,285.61-145,621,835.75

Finding the Fourth Proportional to 257,111,161.85, 354,835,285.61 and 145,621,835.75

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Solution

The fourth proportional to 257,111,161.85, 354,835,285.61 and 145,621,835.75 is: 200,970,526.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,111,161.85 : 354,835,285.61 = 145,621,835.75 : x
  2. Step 2: Convert to fraction form
    257,111,161.85/354,835,285.61 = 145,621,835.75/x
  3. Step 3: Cross multiply
    257,111,161.85x = 354,835,285.61 × 145,621,835.75
  4. Step 4: Simplify right side
    257,111,161.85x = 51,671,765,679,562,736
  5. Step 5: Solve for x
    x = 51,671,765,679,562,736/257,111,161.85
  6. Step 6: Final answer
    x = 200,970,526.94

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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.