Home / 485,017,665.89-727,515,994.39-135,254,401.35

Finding the Fourth Proportional to 485,017,665.89, 727,515,994.39 and 135,254,401.35

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Solution

The fourth proportional to 485,017,665.89, 727,515,994.39 and 135,254,401.35 is: 202,878,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,017,665.89 : 727,515,994.39 = 135,254,401.35 : x
  2. Step 2: Convert to fraction form
    485,017,665.89/727,515,994.39 = 135,254,401.35/x
  3. Step 3: Cross multiply
    485,017,665.89x = 727,515,994.39 × 135,254,401.35
  4. Step 4: Simplify right side
    485,017,665.89x = 98,399,740,293,769,408
  5. Step 5: Solve for x
    x = 98,399,740,293,769,408/485,017,665.89
  6. Step 6: Final answer
    x = 202,878,672.70

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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.