Finding the Fourth Proportional to 13,462,832.34, 18,578,776.05 and 7,351,260.66
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Solution
The fourth proportional to 13,462,832.34, 18,578,776.05 and 7,351,260.66 is: 10,144,776.53
Step by Step Solution
- Step 1: Write the proportion equation
13,462,832.34 : 18,578,776.05 = 7,351,260.66 : x - Step 2: Convert to fraction form
13,462,832.34/18,578,776.05 = 7,351,260.66/x - Step 3: Cross multiply
13,462,832.34x = 18,578,776.05 × 7,351,260.66 - Step 4: Simplify right side
13,462,832.34x = 136,577,425,487,315.20 - Step 5: Solve for x
x = 136,577,425,487,315.20/13,462,832.34 - Step 6: Final answer
x = 10,144,776.53
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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.