Finding the Fourth Proportional to 2,818,176,028.80, 4,227,264,043.20 and 879,227,318.40
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Solution
The fourth proportional to 2,818,176,028.80, 4,227,264,043.20 and 879,227,318.40 is: 1,318,840,977.60
Step by Step Solution
- Step 1: Write the proportion equation
2,818,176,028.80 : 4,227,264,043.20 = 879,227,318.40 : x - Step 2: Convert to fraction form
2,818,176,028.80/4,227,264,043.20 = 879,227,318.40/x - Step 3: Cross multiply
2,818,176,028.80x = 4,227,264,043.20 × 879,227,318.40 - Step 4: Simplify right side
2,818,176,028.80x = 3,716,726,028,871,477,248 - Step 5: Solve for x
x = 3,716,726,028,871,477,248/2,818,176,028.80 - Step 6: Final answer
x = 1,318,840,977.60
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1.5x scale
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.