Finding the Fourth Proportional to 11,656,862.51, 16,086,727.68 and 6,430,029.50
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Solution
The fourth proportional to 11,656,862.51, 16,086,727.68 and 6,430,029.50 is: 8,873,582.70
Step by Step Solution
- Step 1: Write the proportion equation
11,656,862.51 : 16,086,727.68 = 6,430,029.50 : x - Step 2: Convert to fraction form
11,656,862.51/16,086,727.68 = 6,430,029.50/x - Step 3: Cross multiply
11,656,862.51x = 16,086,727.68 × 6,430,029.50 - Step 4: Simplify right side
11,656,862.51x = 103,438,133,460,432.92 - Step 5: Solve for x
x = 103,438,133,460,432.92/11,656,862.51 - Step 6: Final answer
x = 8,873,582.70
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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.