Finding the Fourth Proportional to 128,643,073,072.71, 192,957,626,451.08 and 39,099,085,027.26
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Solution
The fourth proportional to 128,643,073,072.71, 192,957,626,451.08 and 39,099,085,027.26 is: 58,646,505,117.34
Step by Step Solution
- Step 1: Write the proportion equation
128,643,073,072.71 : 192,957,626,451.08 = 39,099,085,027.26 : x - Step 2: Convert to fraction form
128,643,073,072.71/192,957,626,451.08 = 39,099,085,027.26/x - Step 3: Cross multiply
128,643,073,072.71x = 192,957,626,451.08 × 39,099,085,027.26 - Step 4: Simplify right side
128,643,073,072.71x = 7,544,466,643,268,471,357,440 - Step 5: Solve for x
x = 7,544,466,643,268,471,357,440/128,643,073,072.71 - Step 6: Final answer
x = 58,646,505,117.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.