Finding the Fourth Proportional to 7,148,517.42, 9,865,053.99 and 3,885,331.17
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Solution
The fourth proportional to 7,148,517.42, 9,865,053.99 and 3,885,331.17 is: 5,361,811.34
Step by Step Solution
- Step 1: Write the proportion equation
7,148,517.42 : 9,865,053.99 = 3,885,331.17 : x - Step 2: Convert to fraction form
7,148,517.42/9,865,053.99 = 3,885,331.17/x - Step 3: Cross multiply
7,148,517.42x = 9,865,053.99 × 3,885,331.17 - Step 4: Simplify right side
7,148,517.42x = 38,329,001,761,079.87 - Step 5: Solve for x
x = 38,329,001,761,079.87/7,148,517.42 - Step 6: Final answer
x = 5,361,811.34
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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.