Home / 172,400,999.40-258,600,818.70-51,232,451.40

Finding the Fourth Proportional to 172,400,999.40, 258,600,818.70 and 51,232,451.40

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Solution

The fourth proportional to 172,400,999.40, 258,600,818.70 and 51,232,451.40 is: 76,848,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,400,999.40 : 258,600,818.70 = 51,232,451.40 : x
  2. Step 2: Convert to fraction form
    172,400,999.40/258,600,818.70 = 51,232,451.40/x
  3. Step 3: Cross multiply
    172,400,999.40x = 258,600,818.70 × 51,232,451.40
  4. Step 4: Simplify right side
    172,400,999.40x = 13,248,753,876,047,960
  5. Step 5: Solve for x
    x = 13,248,753,876,047,960/172,400,999.40
  6. Step 6: Final answer
    x = 76,848,474.91

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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.