Finding the Fourth Proportional to 212,729,449.16, 319,127,165.85 and 89,908,283.68
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Solution
The fourth proportional to 212,729,449.16, 319,127,165.85 and 89,908,283.68 is: 134,876,369.35
Step by Step Solution
- Step 1: Write the proportion equation
212,729,449.16 : 319,127,165.85 = 89,908,283.68 : x - Step 2: Convert to fraction form
212,729,449.16/319,127,165.85 = 89,908,283.68/x - Step 3: Cross multiply
212,729,449.16x = 319,127,165.85 × 89,908,283.68 - Step 4: Simplify right side
212,729,449.16x = 28,692,175,756,775,544 - Step 5: Solve for x
x = 28,692,175,756,775,544/212,729,449.16 - Step 6: Final answer
x = 134,876,369.35
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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.