Finding the Fourth Proportional to 7,687,164.66, 10,609,909.14 and 6,396,747.18
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Solution
The fourth proportional to 7,687,164.66, 10,609,909.14 and 6,396,747.18 is: 8,828,860.75
Step by Step Solution
- Step 1: Write the proportion equation
7,687,164.66 : 10,609,909.14 = 6,396,747.18 : x - Step 2: Convert to fraction form
7,687,164.66/10,609,909.14 = 6,396,747.18/x - Step 3: Cross multiply
7,687,164.66x = 10,609,909.14 × 6,396,747.18 - Step 4: Simplify right side
7,687,164.66x = 67,868,906,371,351.23 - Step 5: Solve for x
x = 67,868,906,371,351.23/7,687,164.66 - Step 6: Final answer
x = 8,828,860.75
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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.