Finding the Fourth Proportional to 7,767,100.96, 10,723,197.16 and 6,905,280.80
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Solution
The fourth proportional to 7,767,100.96, 10,723,197.16 and 6,905,280.80 is: 9,533,375.17
Step by Step Solution
- Step 1: Write the proportion equation
7,767,100.96 : 10,723,197.16 = 6,905,280.80 : x - Step 2: Convert to fraction form
7,767,100.96/10,723,197.16 = 6,905,280.80/x - Step 3: Cross multiply
7,767,100.96x = 10,723,197.16 × 6,905,280.80 - Step 4: Simplify right side
7,767,100.96x = 74,046,687,463,562.53 - Step 5: Solve for x
x = 74,046,687,463,562.53/7,767,100.96 - Step 6: Final answer
x = 9,533,375.17
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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.