Home / 257,325,565.20-355,112,022.90-139,850,903.94

Finding the Fourth Proportional to 257,325,565.20, 355,112,022.90 and 139,850,903.94

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Solution

The fourth proportional to 257,325,565.20, 355,112,022.90 and 139,850,903.94 is: 192,995,738.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,325,565.20 : 355,112,022.90 = 139,850,903.94 : x
  2. Step 2: Convert to fraction form
    257,325,565.20/355,112,022.90 = 139,850,903.94/x
  3. Step 3: Cross multiply
    257,325,565.20x = 355,112,022.90 × 139,850,903.94
  4. Step 4: Simplify right side
    257,325,565.20x = 49,662,737,402,526,976
  5. Step 5: Solve for x
    x = 49,662,737,402,526,976/257,325,565.20
  6. Step 6: Final answer
    x = 192,995,738.16

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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.