Finding the Fourth Proportional to 1,965,804,377.21, 2,948,717,589.71 and 655,702,833.07
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Solution
The fourth proportional to 1,965,804,377.21, 2,948,717,589.71 and 655,702,833.07 is: 983,557,926.67
Step by Step Solution
- Step 1: Write the proportion equation
1,965,804,377.21 : 2,948,717,589.71 = 655,702,833.07 : x - Step 2: Convert to fraction form
1,965,804,377.21/2,948,717,589.71 = 655,702,833.07/x - Step 3: Cross multiply
1,965,804,377.21x = 2,948,717,589.71 × 655,702,833.07 - Step 4: Simplify right side
1,965,804,377.21x = 1,933,482,477,496,189,184 - Step 5: Solve for x
x = 1,933,482,477,496,189,184/1,965,804,377.21 - Step 6: Final answer
x = 983,557,926.67
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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.