Finding the Fourth Proportional to 7,217,136.09, 9,959,656.20 and 3,909,437.01
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Solution
The fourth proportional to 7,217,136.09, 9,959,656.20 and 3,909,437.01 is: 5,395,027.62
Step by Step Solution
- Step 1: Write the proportion equation
7,217,136.09 : 9,959,656.20 = 3,909,437.01 : x - Step 2: Convert to fraction form
7,217,136.09/9,959,656.20 = 3,909,437.01/x - Step 3: Cross multiply
7,217,136.09x = 9,959,656.20 × 3,909,437.01 - Step 4: Simplify right side
7,217,136.09x = 38,936,648,555,155.95 - Step 5: Solve for x
x = 38,936,648,555,155.95/7,217,136.09 - Step 6: Final answer
x = 5,395,027.62
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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.