Home / 21,021,405,129.06-31,532,189,500.05-5,085,716,028.80

Finding the Fourth Proportional to 21,021,405,129.06, 31,532,189,500.05 and 5,085,716,028.80

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Solution

The fourth proportional to 21,021,405,129.06, 31,532,189,500.05 and 5,085,716,028.80 is: 7,628,593,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,405,129.06 : 31,532,189,500.05 = 5,085,716,028.80 : x
  2. Step 2: Convert to fraction form
    21,021,405,129.06/31,532,189,500.05 = 5,085,716,028.80/x
  3. Step 3: Cross multiply
    21,021,405,129.06x = 31,532,189,500.05 × 5,085,716,028.80
  4. Step 4: Simplify right side
    21,021,405,129.06x = 160,363,761,563,405,680,640
  5. Step 5: Solve for x
    x = 160,363,761,563,405,680,640/21,021,405,129.06
  6. Step 6: Final answer
    x = 7,628,593,834.66

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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.