Home / 257,282,254.28-355,049,240.81-139,807,305.06

Finding the Fourth Proportional to 257,282,254.28, 355,049,240.81 and 139,807,305.06

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Solution

The fourth proportional to 257,282,254.28, 355,049,240.81 and 139,807,305.06 is: 192,933,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,282,254.28 : 355,049,240.81 = 139,807,305.06 : x
  2. Step 2: Convert to fraction form
    257,282,254.28/355,049,240.81 = 139,807,305.06/x
  3. Step 3: Cross multiply
    257,282,254.28x = 355,049,240.81 × 139,807,305.06
  4. Step 4: Simplify right side
    257,282,254.28x = 49,638,477,520,546,040
  5. Step 5: Solve for x
    x = 49,638,477,520,546,040/257,282,254.28
  6. Step 6: Final answer
    x = 192,933,934.21

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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.