Home / 255,973,285.20-353,240,618.74-138,496,037.81

Finding the Fourth Proportional to 255,973,285.20, 353,240,618.74 and 138,496,037.81

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Solution

The fourth proportional to 255,973,285.20, 353,240,618.74 and 138,496,037.81 is: 191,123,171.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,973,285.20 : 353,240,618.74 = 138,496,037.81 : x
  2. Step 2: Convert to fraction form
    255,973,285.20/353,240,618.74 = 138,496,037.81/x
  3. Step 3: Cross multiply
    255,973,285.20x = 353,240,618.74 × 138,496,037.81
  4. Step 4: Simplify right side
    255,973,285.20x = 48,922,426,089,042,840
  5. Step 5: Solve for x
    x = 48,922,426,089,042,840/255,973,285.20
  6. Step 6: Final answer
    x = 191,123,171.51

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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.