Finding the Fourth Proportional to 12,251,506.70, 18,349,266.45 and 7,212,658.70
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Solution
The fourth proportional to 12,251,506.70, 18,349,266.45 and 7,212,658.70 is: 10,802,507.77
Step by Step Solution
- Step 1: Write the proportion equation
12,251,506.70 : 18,349,266.45 = 7,212,658.70 : x - Step 2: Convert to fraction form
12,251,506.70/18,349,266.45 = 7,212,658.70/x - Step 3: Cross multiply
12,251,506.70x = 18,349,266.45 × 7,212,658.70 - Step 4: Simplify right side
12,251,506.70x = 132,346,996,299,210.61 - Step 5: Solve for x
x = 132,346,996,299,210.61/12,251,506.70 - Step 6: Final answer
x = 10,802,507.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.