Finding the Fourth Proportional to 7,294,117.14, 10,931,395.65 and 5,676,838.78
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Solution
The fourth proportional to 7,294,117.14, 10,931,395.65 and 5,676,838.78 is: 8,507,646.58
Step by Step Solution
- Step 1: Write the proportion equation
7,294,117.14 : 10,931,395.65 = 5,676,838.78 : x - Step 2: Convert to fraction form
7,294,117.14/10,931,395.65 = 5,676,838.78/x - Step 3: Cross multiply
7,294,117.14x = 10,931,395.65 × 5,676,838.78 - Step 4: Simplify right side
7,294,117.14x = 62,055,770,745,443.31 - Step 5: Solve for x
x = 62,055,770,745,443.31/7,294,117.14 - Step 6: Final answer
x = 8,507,646.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.