Finding the Fourth Proportional to 7,129,053.20, 10,693,579.80 and 4,294,701.20
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Solution
The fourth proportional to 7,129,053.20, 10,693,579.80 and 4,294,701.20 is: 6,442,051.80
Step by Step Solution
- Step 1: Write the proportion equation
7,129,053.20 : 10,693,579.80 = 4,294,701.20 : x - Step 2: Convert to fraction form
7,129,053.20/10,693,579.80 = 4,294,701.20/x - Step 3: Cross multiply
7,129,053.20x = 10,693,579.80 × 4,294,701.20 - Step 4: Simplify right side
7,129,053.20x = 45,925,729,999,355.77 - Step 5: Solve for x
x = 45,925,729,999,355.77/7,129,053.20 - Step 6: Final answer
x = 6,442,051.80
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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.