Finding the Fourth Proportional to 11,555,987.76, 15,947,248.68 and 6,399,343.08
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Solution
The fourth proportional to 11,555,987.76, 15,947,248.68 and 6,399,343.08 is: 8,831,085.46
Step by Step Solution
- Step 1: Write the proportion equation
11,555,987.76 : 15,947,248.68 = 6,399,343.08 : x - Step 2: Convert to fraction form
11,555,987.76/15,947,248.68 = 6,399,343.08/x - Step 3: Cross multiply
11,555,987.76x = 15,947,248.68 × 6,399,343.08 - Step 4: Simplify right side
11,555,987.76x = 102,051,915,485,397.14 - Step 5: Solve for x
x = 102,051,915,485,397.14/11,555,987.76 - Step 6: Final answer
x = 8,831,085.46
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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.