Finding the Fourth Proportional to 6,241,021.74, 9,360,576.45 and 1,980,637.74
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Solution
The fourth proportional to 6,241,021.74, 9,360,576.45 and 1,980,637.74 is: 2,970,653.17
Step by Step Solution
- Step 1: Write the proportion equation
6,241,021.74 : 9,360,576.45 = 1,980,637.74 : x - Step 2: Convert to fraction form
6,241,021.74/9,360,576.45 = 1,980,637.74/x - Step 3: Cross multiply
6,241,021.74x = 9,360,576.45 × 1,980,637.74 - Step 4: Simplify right side
6,241,021.74x = 18,539,910,985,025.22 - Step 5: Solve for x
x = 18,539,910,985,025.22/6,241,021.74 - Step 6: Final answer
x = 2,970,653.17
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1.5x scale
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.