Home / 257,885,785.36-355,879,045.55-140,409,768.16

Finding the Fourth Proportional to 257,885,785.36, 355,879,045.55 and 140,409,768.16

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Solution

The fourth proportional to 257,885,785.36, 355,879,045.55 and 140,409,768.16 is: 193,763,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,885,785.36 : 355,879,045.55 = 140,409,768.16 : x
  2. Step 2: Convert to fraction form
    257,885,785.36/355,879,045.55 = 140,409,768.16/x
  3. Step 3: Cross multiply
    257,885,785.36x = 355,879,045.55 × 140,409,768.16
  4. Step 4: Simplify right side
    257,885,785.36x = 49,968,894,278,677,584
  5. Step 5: Solve for x
    x = 49,968,894,278,677,584/257,885,785.36
  6. Step 6: Final answer
    x = 193,763,662.50

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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.