Home / 76,779,807.60-114,945,762.60-68,717,650.80

Finding the Fourth Proportional to 76,779,807.60, 114,945,762.60 and 68,717,650.80

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Solution

The fourth proportional to 76,779,807.60, 114,945,762.60 and 68,717,650.80 is: 102,876,042.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779,807.60 : 114,945,762.60 = 68,717,650.80 : x
  2. Step 2: Convert to fraction form
    76,779,807.60/114,945,762.60 = 68,717,650.80/x
  3. Step 3: Cross multiply
    76,779,807.60x = 114,945,762.60 × 68,717,650.80
  4. Step 4: Simplify right side
    76,779,807.60x = 7,898,802,775,286,499
  5. Step 5: Solve for x
    x = 7,898,802,775,286,499/76,779,807.60
  6. Step 6: Final answer
    x = 102,876,042.83

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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.