Finding the Fourth Proportional to 2,990,386.35, 4,125,295.98 and 1,957,439.12
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Solution
The fourth proportional to 2,990,386.35, 4,125,295.98 and 1,957,439.12 is: 2,700,325.23
Step by Step Solution
- Step 1: Write the proportion equation
2,990,386.35 : 4,125,295.98 = 1,957,439.12 : x - Step 2: Convert to fraction form
2,990,386.35/4,125,295.98 = 1,957,439.12/x - Step 3: Cross multiply
2,990,386.35x = 4,125,295.98 × 1,957,439.12 - Step 4: Simplify right side
2,990,386.35x = 8,075,015,712,204.26 - Step 5: Solve for x
x = 8,075,015,712,204.26/2,990,386.35 - Step 6: Final answer
x = 2,700,325.23
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.