Finding the Fourth Proportional to 98,701,961.12, 136,212,962.82 and 54,648,960.92
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Solution
The fourth proportional to 98,701,961.12, 136,212,962.82 and 54,648,960.92 is: 75,417,922.78
Step by Step Solution
- Step 1: Write the proportion equation
98,701,961.12 : 136,212,962.82 = 54,648,960.92 : x - Step 2: Convert to fraction form
98,701,961.12/136,212,962.82 = 54,648,960.92/x - Step 3: Cross multiply
98,701,961.12x = 136,212,962.82 × 54,648,960.92 - Step 4: Simplify right side
98,701,961.12x = 7,443,896,881,947,593 - Step 5: Solve for x
x = 7,443,896,881,947,593/98,701,961.12 - Step 6: Final answer
x = 75,417,922.78
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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.