Finding the Fourth Proportional to 10,565,523.36, 15,920,252.12 and 8,688,478.77
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Solution
The fourth proportional to 10,565,523.36, 15,920,252.12 and 8,688,478.77 is: 13,091,899.74
Step by Step Solution
- Step 1: Write the proportion equation
10,565,523.36 : 15,920,252.12 = 8,688,478.77 : x - Step 2: Convert to fraction form
10,565,523.36/15,920,252.12 = 8,688,478.77/x - Step 3: Cross multiply
10,565,523.36x = 15,920,252.12 × 8,688,478.77 - Step 4: Simplify right side
10,565,523.36x = 138,322,772,579,388.69 - Step 5: Solve for x
x = 138,322,772,579,388.69/10,565,523.36 - Step 6: Final answer
x = 13,091,899.74
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.