Home / 76,779,810.10-114,945,766.35-68,717,653.30

Finding the Fourth Proportional to 76,779,810.10, 114,945,766.35 and 68,717,653.30

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Solution

The fourth proportional to 76,779,810.10, 114,945,766.35 and 68,717,653.30 is: 102,876,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,779,810.10 : 114,945,766.35 = 68,717,653.30 : x
  2. Step 2: Convert to fraction form
    76,779,810.10/114,945,766.35 = 68,717,653.30/x
  3. Step 3: Cross multiply
    76,779,810.10x = 114,945,766.35 × 68,717,653.30
  4. Step 4: Simplify right side
    76,779,810.10x = 7,898,803,320,342,106
  5. Step 5: Solve for x
    x = 7,898,803,320,342,106/76,779,810.10
  6. Step 6: Final answer
    x = 102,876,046.58

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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.