Home / 257,325,587.21-355,112,052.81-139,850,923.52

Finding the Fourth Proportional to 257,325,587.21, 355,112,052.81 and 139,850,923.52

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Solution

The fourth proportional to 257,325,587.21, 355,112,052.81 and 139,850,923.52 is: 192,995,764.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,325,587.21 : 355,112,052.81 = 139,850,923.52 : x
  2. Step 2: Convert to fraction form
    257,325,587.21/355,112,052.81 = 139,850,923.52/x
  3. Step 3: Cross multiply
    257,325,587.21x = 355,112,052.81 × 139,850,923.52
  4. Step 4: Simplify right side
    257,325,587.21x = 49,662,748,538,561,512
  5. Step 5: Solve for x
    x = 49,662,748,538,561,512/257,325,587.21
  6. Step 6: Final answer
    x = 192,995,764.93

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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.