Finding the Fourth Proportional to 14,772,270.42, 20,387,462.90 and 12,287,106.99
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Solution
The fourth proportional to 14,772,270.42, 20,387,462.90 and 12,287,106.99 is: 16,957,646.37
Step by Step Solution
- Step 1: Write the proportion equation
14,772,270.42 : 20,387,462.90 = 12,287,106.99 : x - Step 2: Convert to fraction form
14,772,270.42/20,387,462.90 = 12,287,106.99/x - Step 3: Cross multiply
14,772,270.42x = 20,387,462.90 × 12,287,106.99 - Step 4: Simplify right side
14,772,270.42x = 250,502,937,906,955.66 - Step 5: Solve for x
x = 250,502,937,906,955.66/14,772,270.42 - Step 6: Final answer
x = 16,957,646.37
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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.