Home / 393,077,013,632.56-589,674,475,093.62-138,061,449,321.43

Finding the Fourth Proportional to 393,077,013,632.56, 589,674,475,093.62 and 138,061,449,321.43

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Solution

The fourth proportional to 393,077,013,632.56, 589,674,475,093.62 and 138,061,449,321.43 is: 207,112,880,773.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,077,013,632.56 : 589,674,475,093.62 = 138,061,449,321.43 : x
  2. Step 2: Convert to fraction form
    393,077,013,632.56/589,674,475,093.62 = 138,061,449,321.43/x
  3. Step 3: Cross multiply
    393,077,013,632.56x = 589,674,475,093.62 × 138,061,449,321.43
  4. Step 4: Simplify right side
    393,077,013,632.56x = 81,411,312,659,278,652,768,256
  5. Step 5: Solve for x
    x = 81,411,312,659,278,652,768,256/393,077,013,632.56
  6. Step 6: Final answer
    x = 207,112,880,773.49

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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.