Finding the Fourth Proportional to 7,909,941.68, 10,916,013.48 and 4,471,977.68
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Solution
The fourth proportional to 7,909,941.68, 10,916,013.48 and 4,471,977.68 is: 6,171,495.39
Step by Step Solution
- Step 1: Write the proportion equation
7,909,941.68 : 10,916,013.48 = 4,471,977.68 : x - Step 2: Convert to fraction form
7,909,941.68/10,916,013.48 = 4,471,977.68/x - Step 3: Cross multiply
7,909,941.68x = 10,916,013.48 × 4,471,977.68 - Step 4: Simplify right side
7,909,941.68x = 48,816,168,637,139.12 - Step 5: Solve for x
x = 48,816,168,637,139.12/7,909,941.68 - Step 6: Final answer
x = 6,171,495.39
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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.