Home / 56,754,890.22-78,321,747.70-30,649,407.28

Finding the Fourth Proportional to 56,754,890.22, 78,321,747.70 and 30,649,407.28

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Solution

The fourth proportional to 56,754,890.22, 78,321,747.70 and 30,649,407.28 is: 42,296,181.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754,890.22 : 78,321,747.70 = 30,649,407.28 : x
  2. Step 2: Convert to fraction form
    56,754,890.22/78,321,747.70 = 30,649,407.28/x
  3. Step 3: Cross multiply
    56,754,890.22x = 78,321,747.70 × 30,649,407.28
  4. Step 4: Simplify right side
    56,754,890.22x = 2,400,515,144,138,703.50
  5. Step 5: Solve for x
    x = 2,400,515,144,138,703.50/56,754,890.22
  6. Step 6: Final answer
    x = 42,296,181.61

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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.