Finding the Fourth Proportional to 12,492,656.66, 17,239,912.35 and 7,266,918.58
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Solution
The fourth proportional to 12,492,656.66, 17,239,912.35 and 7,266,918.58 is: 10,028,374.49
Step by Step Solution
- Step 1: Write the proportion equation
12,492,656.66 : 17,239,912.35 = 7,266,918.58 : x - Step 2: Convert to fraction form
12,492,656.66/17,239,912.35 = 7,266,918.58/x - Step 3: Cross multiply
12,492,656.66x = 17,239,912.35 × 7,266,918.58 - Step 4: Simplify right side
12,492,656.66x = 125,281,039,373,786.47 - Step 5: Solve for x
x = 125,281,039,373,786.47/12,492,656.66 - Step 6: Final answer
x = 10,028,374.49
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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.