Finding the Fourth Proportional to 261,087,479.05, 360,817,459.41 and 213,970,252.09
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Solution
The fourth proportional to 261,087,479.05, 360,817,459.41 and 213,970,252.09 is: 295,702,432.88
Step by Step Solution
- Step 1: Write the proportion equation
261,087,479.05 : 360,817,459.41 = 213,970,252.09 : x - Step 2: Convert to fraction form
261,087,479.05/360,817,459.41 = 213,970,252.09/x - Step 3: Cross multiply
261,087,479.05x = 360,817,459.41 × 213,970,252.09 - Step 4: Simplify right side
261,087,479.05x = 77,204,202,748,431,056 - Step 5: Solve for x
x = 77,204,202,748,431,056/261,087,479.05 - Step 6: Final answer
x = 295,702,432.88
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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.