Finding the Fourth Proportional to 12,197,468.16, 18,301,789.49 and 5,283,062.36
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Solution
The fourth proportional to 12,197,468.16, 18,301,789.49 and 5,283,062.36 is: 7,927,013.53
Step by Step Solution
- Step 1: Write the proportion equation
12,197,468.16 : 18,301,789.49 = 5,283,062.36 : x - Step 2: Convert to fraction form
12,197,468.16/18,301,789.49 = 5,283,062.36/x - Step 3: Cross multiply
12,197,468.16x = 18,301,789.49 × 5,283,062.36 - Step 4: Simplify right side
12,197,468.16x = 96,689,495,125,970.03 - Step 5: Solve for x
x = 96,689,495,125,970.03/12,197,468.16 - Step 6: Final answer
x = 7,927,013.53
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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.