Finding the Fourth Proportional to 10,513,905.68, 14,509,378.81 and 6,166,127.81
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Solution
The fourth proportional to 10,513,905.68, 14,509,378.81 and 6,166,127.81 is: 8,509,367.20
Step by Step Solution
- Step 1: Write the proportion equation
10,513,905.68 : 14,509,378.81 = 6,166,127.81 : x - Step 2: Convert to fraction form
10,513,905.68/14,509,378.81 = 6,166,127.81/x - Step 3: Cross multiply
10,513,905.68x = 14,509,378.81 × 6,166,127.81 - Step 4: Simplify right side
10,513,905.68x = 89,466,684,207,023.83 - Step 5: Solve for x
x = 89,466,684,207,023.83/10,513,905.68 - Step 6: Final answer
x = 8,509,367.20
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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.