Finding the Fourth Proportional to 4,977,790.16, 6,868,994.28 and 2,802,220.88
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Solution
The fourth proportional to 4,977,790.16, 6,868,994.28 and 2,802,220.88 is: 3,866,864.33
Step by Step Solution
- Step 1: Write the proportion equation
4,977,790.16 : 6,868,994.28 = 2,802,220.88 : x - Step 2: Convert to fraction form
4,977,790.16/6,868,994.28 = 2,802,220.88/x - Step 3: Cross multiply
4,977,790.16x = 6,868,994.28 × 2,802,220.88 - Step 4: Simplify right side
4,977,790.16x = 19,248,439,196,016.57 - Step 5: Solve for x
x = 19,248,439,196,016.57/4,977,790.16 - Step 6: Final answer
x = 3,866,864.33
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1.5x scale
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.