Finding the Fourth Proportional to 18,992,635.74, 26,206,386.30 and 10,620,156.60
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Solution
The fourth proportional to 18,992,635.74, 26,206,386.30 and 10,620,156.60 is: 14,653,886.39
Step by Step Solution
- Step 1: Write the proportion equation
18,992,635.74 : 26,206,386.30 = 10,620,156.60 : x - Step 2: Convert to fraction form
18,992,635.74/26,206,386.30 = 10,620,156.60/x - Step 3: Cross multiply
18,992,635.74x = 26,206,386.30 × 10,620,156.60 - Step 4: Simplify right side
18,992,635.74x = 278,315,926,426,094.59 - Step 5: Solve for x
x = 278,315,926,426,094.59/18,992,635.74 - Step 6: Final answer
x = 14,653,886.39
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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.