Finding the Fourth Proportional to 15,181,578.84, 20,950,881.30 and 8,306,208.48
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Solution
The fourth proportional to 15,181,578.84, 20,950,881.30 and 8,306,208.48 is: 11,462,733.21
Step by Step Solution
- Step 1: Write the proportion equation
15,181,578.84 : 20,950,881.30 = 8,306,208.48 : x - Step 2: Convert to fraction form
15,181,578.84/20,950,881.30 = 8,306,208.48/x - Step 3: Cross multiply
15,181,578.84x = 20,950,881.30 × 8,306,208.48 - Step 4: Simplify right side
15,181,578.84x = 174,022,387,917,533.44 - Step 5: Solve for x
x = 174,022,387,917,533.44/15,181,578.84 - Step 6: Final answer
x = 11,462,733.21
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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.