Finding the Fourth Proportional to 87,676,951.68, 121,042,844.16 and 52,878,497.28
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Solution
The fourth proportional to 87,676,951.68, 121,042,844.16 and 52,878,497.28 is: 73,001,667.86
Step by Step Solution
- Step 1: Write the proportion equation
87,676,951.68 : 121,042,844.16 = 52,878,497.28 : x - Step 2: Convert to fraction form
87,676,951.68/121,042,844.16 = 52,878,497.28/x - Step 3: Cross multiply
87,676,951.68x = 121,042,844.16 × 52,878,497.28 - Step 4: Simplify right side
87,676,951.68x = 6,400,563,705,678,024 - Step 5: Solve for x
x = 6,400,563,705,678,024/87,676,951.68 - Step 6: Final answer
x = 73,001,667.86
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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.