Home / 780,489,023.70-1,170,733,535.55-320,274,239.70

Finding the Fourth Proportional to 780,489,023.70, 1,170,733,535.55 and 320,274,239.70

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Solution

The fourth proportional to 780,489,023.70, 1,170,733,535.55 and 320,274,239.70 is: 480,411,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,489,023.70 : 1,170,733,535.55 = 320,274,239.70 : x
  2. Step 2: Convert to fraction form
    780,489,023.70/1,170,733,535.55 = 320,274,239.70/x
  3. Step 3: Cross multiply
    780,489,023.70x = 1,170,733,535.55 × 320,274,239.70
  4. Step 4: Simplify right side
    780,489,023.70x = 374,955,792,989,569,152
  5. Step 5: Solve for x
    x = 374,955,792,989,569,152/780,489,023.70
  6. Step 6: Final answer
    x = 480,411,359.55

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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.