Home / 257,768,058.12-355,727,473.94-140,300,996.68

Finding the Fourth Proportional to 257,768,058.12, 355,727,473.94 and 140,300,996.68

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Solution

The fourth proportional to 257,768,058.12, 355,727,473.94 and 140,300,996.68 is: 193,619,486.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,768,058.12 : 355,727,473.94 = 140,300,996.68 : x
  2. Step 2: Convert to fraction form
    257,768,058.12/355,727,473.94 = 140,300,996.68/x
  3. Step 3: Cross multiply
    257,768,058.12x = 355,727,473.94 × 140,300,996.68
  4. Step 4: Simplify right side
    257,768,058.12x = 49,908,919,140,240,728
  5. Step 5: Solve for x
    x = 49,908,919,140,240,728/257,768,058.12
  6. Step 6: Final answer
    x = 193,619,486.85

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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.