Home / 310,719,004.17-428,790,113.55-171,489,761.84

Finding the Fourth Proportional to 310,719,004.17, 428,790,113.55 and 171,489,761.84

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Solution

The fourth proportional to 310,719,004.17, 428,790,113.55 and 171,489,761.84 is: 236,654,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,719,004.17 : 428,790,113.55 = 171,489,761.84 : x
  2. Step 2: Convert to fraction form
    310,719,004.17/428,790,113.55 = 171,489,761.84/x
  3. Step 3: Cross multiply
    310,719,004.17x = 428,790,113.55 × 171,489,761.84
  4. Step 4: Simplify right side
    310,719,004.17x = 73,533,114,449,892,112
  5. Step 5: Solve for x
    x = 73,533,114,449,892,112/310,719,004.17
  6. Step 6: Final answer
    x = 236,654,705.58

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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.