Finding the Fourth Proportional to 83,888,380,553.94, 115,793,553,501.12 and 66,772,629,610.74
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Solution
The fourth proportional to 83,888,380,553.94, 115,793,553,501.12 and 66,772,629,610.74 is: 92,168,188,349.64
Step by Step Solution
- Step 1: Write the proportion equation
83,888,380,553.94 : 115,793,553,501.12 = 66,772,629,610.74 : x - Step 2: Convert to fraction form
83,888,380,553.94/115,793,553,501.12 = 66,772,629,610.74/x - Step 3: Cross multiply
83,888,380,553.94x = 115,793,553,501.12 × 66,772,629,610.74 - Step 4: Simplify right side
83,888,380,553.94x = 7,731,840,059,241,690,824,704 - Step 5: Solve for x
x = 7,731,840,059,241,690,824,704/83,888,380,553.94 - Step 6: Final answer
x = 92,168,188,349.64
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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.