Home / 129,461,309.35-178,659,240.55-70,727,778.63

Finding the Fourth Proportional to 129,461,309.35, 178,659,240.55 and 70,727,778.63

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Solution

The fourth proportional to 129,461,309.35, 178,659,240.55 and 70,727,778.63 is: 97,605,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,461,309.35 : 178,659,240.55 = 70,727,778.63 : x
  2. Step 2: Convert to fraction form
    129,461,309.35/178,659,240.55 = 70,727,778.63/x
  3. Step 3: Cross multiply
    129,461,309.35x = 178,659,240.55 × 70,727,778.63
  4. Step 4: Simplify right side
    129,461,309.35x = 12,636,171,215,647,500
  5. Step 5: Solve for x
    x = 12,636,171,215,647,500/129,461,309.35
  6. Step 6: Final answer
    x = 97,605,773.33

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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.