Home / 628,618,558.96-867,494,412.42-342,508,730.86

Finding the Fourth Proportional to 628,618,558.96, 867,494,412.42 and 342,508,730.86

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Solution

The fourth proportional to 628,618,558.96, 867,494,412.42 and 342,508,730.86 is: 472,662,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,618,558.96 : 867,494,412.42 = 342,508,730.86 : x
  2. Step 2: Convert to fraction form
    628,618,558.96/867,494,412.42 = 342,508,730.86/x
  3. Step 3: Cross multiply
    628,618,558.96x = 867,494,412.42 × 342,508,730.86
  4. Step 4: Simplify right side
    628,618,558.96x = 297,124,410,226,115,648
  5. Step 5: Solve for x
    x = 297,124,410,226,115,648/628,618,558.96
  6. Step 6: Final answer
    x = 472,662,485.05

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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.