Finding the Fourth Proportional to 354,427,953.60, 531,264,016.80 and 135,993,892.80
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Solution
The fourth proportional to 354,427,953.60, 531,264,016.80 and 135,993,892.80 is: 203,845,833.87
Step by Step Solution
- Step 1: Write the proportion equation
354,427,953.60 : 531,264,016.80 = 135,993,892.80 : x - Step 2: Convert to fraction form
354,427,953.60/531,264,016.80 = 135,993,892.80/x - Step 3: Cross multiply
354,427,953.60x = 531,264,016.80 × 135,993,892.80 - Step 4: Simplify right side
354,427,953.60x = 72,248,661,749,196,608 - Step 5: Solve for x
x = 72,248,661,749,196,608/354,427,953.60 - Step 6: Final answer
x = 203,845,833.87
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.