Finding the Fourth Proportional to 80,862,060.20, 121,210,421.70 and 39,858,434.60
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Solution
The fourth proportional to 80,862,060.20, 121,210,421.70 and 39,858,434.60 is: 59,746,902.99
Step by Step Solution
- Step 1: Write the proportion equation
80,862,060.20 : 121,210,421.70 = 39,858,434.60 : x - Step 2: Convert to fraction form
80,862,060.20/121,210,421.70 = 39,858,434.60/x - Step 3: Cross multiply
80,862,060.20x = 121,210,421.70 × 39,858,434.60 - Step 4: Simplify right side
80,862,060.20x = 4,831,257,666,167,871 - Step 5: Solve for x
x = 4,831,257,666,167,871/80,862,060.20 - Step 6: Final answer
x = 59,746,902.99
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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.