Home / 189,691,640.32-261,774,412.16-102,771,512.32

Finding the Fourth Proportional to 189,691,640.32, 261,774,412.16 and 102,771,512.32

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Solution

The fourth proportional to 189,691,640.32, 261,774,412.16 and 102,771,512.32 is: 141,824,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,691,640.32 : 261,774,412.16 = 102,771,512.32 : x
  2. Step 2: Convert to fraction form
    189,691,640.32/261,774,412.16 = 102,771,512.32/x
  3. Step 3: Cross multiply
    189,691,640.32x = 261,774,412.16 × 102,771,512.32
  4. Step 4: Simplify right side
    189,691,640.32x = 26,902,952,224,362,196
  5. Step 5: Solve for x
    x = 26,902,952,224,362,196/189,691,640.32
  6. Step 6: Final answer
    x = 141,824,659.11

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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.