Finding the Fourth Proportional to 11,387,135.86, 15,714,212.79 and 6,160,142.38
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Solution
The fourth proportional to 11,387,135.86, 15,714,212.79 and 6,160,142.38 is: 8,500,977.71
Step by Step Solution
- Step 1: Write the proportion equation
11,387,135.86 : 15,714,212.79 = 6,160,142.38 : x - Step 2: Convert to fraction form
11,387,135.86/15,714,212.79 = 6,160,142.38/x - Step 3: Cross multiply
11,387,135.86x = 15,714,212.79 × 6,160,142.38 - Step 4: Simplify right side
11,387,135.86x = 96,801,788,176,017.03 - Step 5: Solve for x
x = 96,801,788,176,017.03/11,387,135.86 - Step 6: Final answer
x = 8,500,977.71
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1.5x scale
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.