Finding the Fourth Proportional to 98,132,892.96, 135,331,539.84 and 77,555,497.44
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Solution
The fourth proportional to 98,132,892.96, 135,331,539.84 and 77,555,497.44 is: 106,953,994.48
Step by Step Solution
- Step 1: Write the proportion equation
98,132,892.96 : 135,331,539.84 = 77,555,497.44 : x - Step 2: Convert to fraction form
98,132,892.96/135,331,539.84 = 77,555,497.44/x - Step 3: Cross multiply
98,132,892.96x = 135,331,539.84 × 77,555,497.44 - Step 4: Simplify right side
98,132,892.96x = 10,495,704,891,612,378 - Step 5: Solve for x
x = 10,495,704,891,612,378/98,132,892.96 - Step 6: Final answer
x = 106,953,994.48
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1.5x scale
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.