Home / 76,602,999.68-105,588,648.80-51,814,146.24

Finding the Fourth Proportional to 76,602,999.68, 105,588,648.80 and 51,814,146.24

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Solution

The fourth proportional to 76,602,999.68, 105,588,648.80 and 51,814,146.24 is: 71,419,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,602,999.68 : 105,588,648.80 = 51,814,146.24 : x
  2. Step 2: Convert to fraction form
    76,602,999.68/105,588,648.80 = 51,814,146.24/x
  3. Step 3: Cross multiply
    76,602,999.68x = 105,588,648.80 × 51,814,146.24
  4. Step 4: Simplify right side
    76,602,999.68x = 5,470,985,690,207,201
  5. Step 5: Solve for x
    x = 5,470,985,690,207,201/76,602,999.68
  6. Step 6: Final answer
    x = 71,419,992.86

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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.