Finding the Fourth Proportional to 98,312,724.12, 135,671,847 and 53,659,107.60
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Solution
The fourth proportional to 98,312,724.12, 135,671,847 and 53,659,107.60 is: 74,049,725.52
Step by Step Solution
- Step 1: Write the proportion equation
98,312,724.12 : 135,671,847 = 53,659,107.60 : x - Step 2: Convert to fraction form
98,312,724.12/135,671,847 = 53,659,107.60/x - Step 3: Cross multiply
98,312,724.12x = 135,671,847 × 53,659,107.60 - Step 4: Simplify right side
98,312,724.12x = 7,280,030,236,463,737 - Step 5: Solve for x
x = 7,280,030,236,463,737/98,312,724.12 - Step 6: Final answer
x = 74,049,725.52
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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.