Finding the Fourth Proportional to 203,957,970.21, 306,055,660.14 and 85,774,239.81
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Solution
The fourth proportional to 203,957,970.21, 306,055,660.14 and 85,774,239.81 is: 128,711,280.86
Step by Step Solution
- Step 1: Write the proportion equation
203,957,970.21 : 306,055,660.14 = 85,774,239.81 : x - Step 2: Convert to fraction form
203,957,970.21/306,055,660.14 = 85,774,239.81/x - Step 3: Cross multiply
203,957,970.21x = 306,055,660.14 × 85,774,239.81 - Step 4: Simplify right side
203,957,970.21x = 26,251,691,588,056,216 - Step 5: Solve for x
x = 26,251,691,588,056,216/203,957,970.21 - Step 6: Final answer
x = 128,711,280.86
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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.