Home / 112,189,100.32-168,336,944.96-77,698,579.44

Finding the Fourth Proportional to 112,189,100.32, 168,336,944.96 and 77,698,579.44

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Solution

The fourth proportional to 112,189,100.32, 168,336,944.96 and 77,698,579.44 is: 116,584,779.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,189,100.32 : 168,336,944.96 = 77,698,579.44 : x
  2. Step 2: Convert to fraction form
    112,189,100.32/168,336,944.96 = 77,698,579.44/x
  3. Step 3: Cross multiply
    112,189,100.32x = 168,336,944.96 × 77,698,579.44
  4. Step 4: Simplify right side
    112,189,100.32x = 13,079,541,490,661,468
  5. Step 5: Solve for x
    x = 13,079,541,490,661,468/112,189,100.32
  6. Step 6: Final answer
    x = 116,584,779.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.