Finding the Fourth Proportional to 11,550,776.32, 15,939,878.40 and 6,394,028.80
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Solution
The fourth proportional to 11,550,776.32, 15,939,878.40 and 6,394,028.80 is: 8,823,652.95
Step by Step Solution
- Step 1: Write the proportion equation
11,550,776.32 : 15,939,878.40 = 6,394,028.80 : x - Step 2: Convert to fraction form
11,550,776.32/15,939,878.40 = 6,394,028.80/x - Step 3: Cross multiply
11,550,776.32x = 15,939,878.40 × 6,394,028.80 - Step 4: Simplify right side
11,550,776.32x = 101,920,041,558,097.92 - Step 5: Solve for x
x = 101,920,041,558,097.92/11,550,776.32 - Step 6: Final answer
x = 8,823,652.95
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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.