Finding the Fourth Proportional to 7,869,705.81, 10,860,216.05 and 4,562,642.70
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Solution
The fourth proportional to 7,869,705.81, 10,860,216.05 and 4,562,642.70 is: 6,296,459.70
Step by Step Solution
- Step 1: Write the proportion equation
7,869,705.81 : 10,860,216.05 = 4,562,642.70 : x - Step 2: Convert to fraction form
7,869,705.81/10,860,216.05 = 4,562,642.70/x - Step 3: Cross multiply
7,869,705.81x = 10,860,216.05 × 4,562,642.70 - Step 4: Simplify right side
7,869,705.81x = 49,551,285,508,085.88 - Step 5: Solve for x
x = 49,551,285,508,085.88/7,869,705.81 - Step 6: Final answer
x = 6,296,459.70
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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.