Finding the Fourth Proportional to 13,357,884.62, 18,433,916.28 and 7,246,313.12
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Solution
The fourth proportional to 13,357,884.62, 18,433,916.28 and 7,246,313.12 is: 9,999,931.37
Step by Step Solution
- Step 1: Write the proportion equation
13,357,884.62 : 18,433,916.28 = 7,246,313.12 : x - Step 2: Convert to fraction form
13,357,884.62/18,433,916.28 = 7,246,313.12/x - Step 3: Cross multiply
13,357,884.62x = 18,433,916.28 × 7,246,313.12 - Step 4: Simplify right side
13,357,884.62x = 133,577,929,438,830.39 - Step 5: Solve for x
x = 133,577,929,438,830.39/13,357,884.62 - Step 6: Final answer
x = 9,999,931.37
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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.