Finding the Fourth Proportional to 7,962,763.47, 10,988,481.69 and 4,430,427.68
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Solution
The fourth proportional to 7,962,763.47, 10,988,481.69 and 4,430,427.68 is: 6,113,916.80
Step by Step Solution
- Step 1: Write the proportion equation
7,962,763.47 : 10,988,481.69 = 4,430,427.68 : x - Step 2: Convert to fraction form
7,962,763.47/10,988,481.69 = 4,430,427.68/x - Step 3: Cross multiply
7,962,763.47x = 10,988,481.69 × 4,430,427.68 - Step 4: Simplify right side
7,962,763.47x = 48,683,673,385,606.77 - Step 5: Solve for x
x = 48,683,673,385,606.77/7,962,763.47 - Step 6: Final answer
x = 6,113,916.80
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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.