Home / 127,313,185.92-190,589,128.32-77,973,674.64

Finding the Fourth Proportional to 127,313,185.92, 190,589,128.32 and 77,973,674.64

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Solution

The fourth proportional to 127,313,185.92, 190,589,128.32 and 77,973,674.64 is: 116,727,380.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,313,185.92 : 190,589,128.32 = 77,973,674.64 : x
  2. Step 2: Convert to fraction form
    127,313,185.92/190,589,128.32 = 77,973,674.64/x
  3. Step 3: Cross multiply
    127,313,185.92x = 190,589,128.32 × 77,973,674.64
  4. Step 4: Simplify right side
    127,313,185.92x = 14,860,934,681,544,890
  5. Step 5: Solve for x
    x = 14,860,934,681,544,890/127,313,185.92
  6. Step 6: Final answer
    x = 116,727,380.39

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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.