Home / 1,115,034,421,709.30-1,538,747,575,954.40-620,628,368,771.40

Finding the Fourth Proportional to 1,115,034,421,709.30, 1,538,747,575,954.40 and 620,628,368,771.40

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Solution

The fourth proportional to 1,115,034,421,709.30, 1,538,747,575,954.40 and 620,628,368,771.40 is: 856,467,190,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,034,421,709.30 : 1,538,747,575,954.40 = 620,628,368,771.40 : x
  2. Step 2: Convert to fraction form
    1,115,034,421,709.30/1,538,747,575,954.40 = 620,628,368,771.40/x
  3. Step 3: Cross multiply
    1,115,034,421,709.30x = 1,538,747,575,954.40 × 620,628,368,771.40
  4. Step 4: Simplify right side
    1,115,034,421,709.30x = 954,990,398,015,525,206,622,208
  5. Step 5: Solve for x
    x = 954,990,398,015,525,206,622,208/1,115,034,421,709.30
  6. Step 6: Final answer
    x = 856,467,190,090.48

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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.