Finding the Fourth Proportional to 12,312,389.37, 16,992,785.16 and 7,085,290.08
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Solution
The fourth proportional to 12,312,389.37, 16,992,785.16 and 7,085,290.08 is: 9,778,671.59
Step by Step Solution
- Step 1: Write the proportion equation
12,312,389.37 : 16,992,785.16 = 7,085,290.08 : x - Step 2: Convert to fraction form
12,312,389.37/16,992,785.16 = 7,085,290.08/x - Step 3: Cross multiply
12,312,389.37x = 16,992,785.16 × 7,085,290.08 - Step 4: Simplify right side
12,312,389.37x = 120,398,812,125,719.22 - Step 5: Solve for x
x = 120,398,812,125,719.22/12,312,389.37 - Step 6: Final answer
x = 9,778,671.59
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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.