Home / 76,779,806.60-114,945,761.10-68,717,649.80

Finding the Fourth Proportional to 76,779,806.60, 114,945,761.10 and 68,717,649.80

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Solution

The fourth proportional to 76,779,806.60, 114,945,761.10 and 68,717,649.80 is: 102,876,041.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779,806.60 : 114,945,761.10 = 68,717,649.80 : x
  2. Step 2: Convert to fraction form
    76,779,806.60/114,945,761.10 = 68,717,649.80/x
  3. Step 3: Cross multiply
    76,779,806.60x = 114,945,761.10 × 68,717,649.80
  4. Step 4: Simplify right side
    76,779,806.60x = 7,898,802,557,264,262
  5. Step 5: Solve for x
    x = 7,898,802,557,264,262/76,779,806.60
  6. Step 6: Final answer
    x = 102,876,041.33

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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.