Finding the Fourth Proportional to 15,348,994.80, 21,181,057.56 and 8,473,329.24
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Solution
The fourth proportional to 15,348,994.80, 21,181,057.56 and 8,473,329.24 is: 11,692,887.82
Step by Step Solution
- Step 1: Write the proportion equation
15,348,994.80 : 21,181,057.56 = 8,473,329.24 : x - Step 2: Convert to fraction form
15,348,994.80/21,181,057.56 = 8,473,329.24/x - Step 3: Cross multiply
15,348,994.80x = 21,181,057.56 × 8,473,329.24 - Step 4: Simplify right side
15,348,994.80x = 179,474,074,357,271.06 - Step 5: Solve for x
x = 179,474,074,357,271.06/15,348,994.80 - Step 6: Final answer
x = 11,692,887.82
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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.