Finding the Fourth Proportional to 309,908,754.64, 427,660,282.74 and 177,654,935.44
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Solution
The fourth proportional to 309,908,754.64, 427,660,282.74 and 177,654,935.44 is: 245,155,900.84
Step by Step Solution
- Step 1: Write the proportion equation
309,908,754.64 : 427,660,282.74 = 177,654,935.44 : x - Step 2: Convert to fraction form
309,908,754.64/427,660,282.74 = 177,654,935.44/x - Step 3: Cross multiply
309,908,754.64x = 427,660,282.74 × 177,654,935.44 - Step 4: Simplify right side
309,908,754.64x = 75,975,959,920,426,848 - Step 5: Solve for x
x = 75,975,959,920,426,848/309,908,754.64 - Step 6: Final answer
x = 245,155,900.84
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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.