Finding the Fourth Proportional to 11,830,769.15, 16,326,368.91 and 6,398,261.15
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Solution
The fourth proportional to 11,830,769.15, 16,326,368.91 and 6,398,261.15 is: 8,829,550.35
Step by Step Solution
- Step 1: Write the proportion equation
11,830,769.15 : 16,326,368.91 = 6,398,261.15 : x - Step 2: Convert to fraction form
11,830,769.15/16,326,368.91 = 6,398,261.15/x - Step 3: Cross multiply
11,830,769.15x = 16,326,368.91 × 6,398,261.15 - Step 4: Simplify right side
11,830,769.15x = 104,460,371,835,789 - Step 5: Solve for x
x = 104,460,371,835,789/11,830,769.15 - Step 6: Final answer
x = 8,829,550.35
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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.