Finding the Fourth Proportional to 70,976,904.84, 97,910,892.70 and 61,663,548.96
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Solution
The fourth proportional to 70,976,904.84, 97,910,892.70 and 61,663,548.96 is: 85,063,347.57
Step by Step Solution
- Step 1: Write the proportion equation
70,976,904.84 : 97,910,892.70 = 61,663,548.96 : x - Step 2: Convert to fraction form
70,976,904.84/97,910,892.70 = 61,663,548.96/x - Step 3: Cross multiply
70,976,904.84x = 97,910,892.70 × 61,663,548.96 - Step 4: Simplify right side
70,976,904.84x = 6,037,533,125,723,757 - Step 5: Solve for x
x = 6,037,533,125,723,757/70,976,904.84 - Step 6: Final answer
x = 85,063,347.57
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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.