Finding the Fourth Proportional to 126,374,520.80, 174,344,903.88 and 76,806,909.32
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Solution
The fourth proportional to 126,374,520.80, 174,344,903.88 and 76,806,909.32 is: 105,961,970.32
Step by Step Solution
- Step 1: Write the proportion equation
126,374,520.80 : 174,344,903.88 = 76,806,909.32 : x - Step 2: Convert to fraction form
126,374,520.80/174,344,903.88 = 76,806,909.32/x - Step 3: Cross multiply
126,374,520.80x = 174,344,903.88 × 76,806,909.32 - Step 4: Simplify right side
126,374,520.80x = 13,390,893,222,715,274 - Step 5: Solve for x
x = 13,390,893,222,715,274/126,374,520.80 - Step 6: Final answer
x = 105,961,970.32
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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.