Home / 257,507,338.96-355,362,658.14-140,035,221.92

Finding the Fourth Proportional to 257,507,338.96, 355,362,658.14 and 140,035,221.92

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Solution

The fourth proportional to 257,507,338.96, 355,362,658.14 and 140,035,221.92 is: 193,249,982.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,507,338.96 : 355,362,658.14 = 140,035,221.92 : x
  2. Step 2: Convert to fraction form
    257,507,338.96/355,362,658.14 = 140,035,221.92/x
  3. Step 3: Cross multiply
    257,507,338.96x = 355,362,658.14 × 140,035,221.92
  4. Step 4: Simplify right side
    257,507,338.96x = 49,763,288,694,715,984
  5. Step 5: Solve for x
    x = 49,763,288,694,715,984/257,507,338.96
  6. Step 6: Final answer
    x = 193,249,982.29

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1.5x scale

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.