Home / 427,373,936,461.47-641,081,520,781.38-140,525,642,112.35

Finding the Fourth Proportional to 427,373,936,461.47, 641,081,520,781.38 and 140,525,642,112.35

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Solution

The fourth proportional to 427,373,936,461.47, 641,081,520,781.38 and 140,525,642,112.35 is: 210,795,241,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,373,936,461.47 : 641,081,520,781.38 = 140,525,642,112.35 : x
  2. Step 2: Convert to fraction form
    427,373,936,461.47/641,081,520,781.38 = 140,525,642,112.35/x
  3. Step 3: Cross multiply
    427,373,936,461.47x = 641,081,520,781.38 × 140,525,642,112.35
  4. Step 4: Simplify right side
    427,373,936,461.47x = 90,088,392,354,165,275,230,208
  5. Step 5: Solve for x
    x = 90,088,392,354,165,275,230,208/427,373,936,461.47
  6. Step 6: Final answer
    x = 210,795,241,984.27

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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.