Home / 909,374,268.86-1,364,052,309.75-287,589,606.96

Finding the Fourth Proportional to 909,374,268.86, 1,364,052,309.75 and 287,589,606.96

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Solution

The fourth proportional to 909,374,268.86, 1,364,052,309.75 and 287,589,606.96 is: 431,381,534.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,374,268.86 : 1,364,052,309.75 = 287,589,606.96 : x
  2. Step 2: Convert to fraction form
    909,374,268.86/1,364,052,309.75 = 287,589,606.96/x
  3. Step 3: Cross multiply
    909,374,268.86x = 1,364,052,309.75 × 287,589,606.96
  4. Step 4: Simplify right side
    909,374,268.86x = 392,287,267,633,882,624
  5. Step 5: Solve for x
    x = 392,287,267,633,882,624/909,374,268.86
  6. Step 6: Final answer
    x = 431,381,534.61

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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.