Finding the Fourth Proportional to 5,557,391.13, 7,665,641.07 and 4,457,461.80
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Solution
The fourth proportional to 5,557,391.13, 7,665,641.07 and 4,457,461.80 is: 6,148,442.94
Step by Step Solution
- Step 1: Write the proportion equation
5,557,391.13 : 7,665,641.07 = 4,457,461.80 : x - Step 2: Convert to fraction form
5,557,391.13/7,665,641.07 = 4,457,461.80/x - Step 3: Cross multiply
5,557,391.13x = 7,665,641.07 × 4,457,461.80 - Step 4: Simplify right side
5,557,391.13x = 34,169,302,242,036.12 - Step 5: Solve for x
x = 34,169,302,242,036.12/5,557,391.13 - Step 6: Final answer
x = 6,148,442.94
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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.