Finding the Fourth Proportional to 4,911,505.25, 6,778,235.48 and 2,847,053.80
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Solution
The fourth proportional to 4,911,505.25, 6,778,235.48 and 2,847,053.80 is: 3,929,141.89
Step by Step Solution
- Step 1: Write the proportion equation
4,911,505.25 : 6,778,235.48 = 2,847,053.80 : x - Step 2: Convert to fraction form
4,911,505.25/6,778,235.48 = 2,847,053.80/x - Step 3: Cross multiply
4,911,505.25x = 6,778,235.48 × 2,847,053.80 - Step 4: Simplify right side
4,911,505.25x = 19,298,001,032,502.38 - Step 5: Solve for x
x = 19,298,001,032,502.38/4,911,505.25 - Step 6: Final answer
x = 3,929,141.89
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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.