Finding the Fourth Proportional to 7,117,840.98, 9,822,605.54 and 3,854,645.64
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Solution
The fourth proportional to 7,117,840.98, 9,822,605.54 and 3,854,645.64 is: 5,319,402.85
Step by Step Solution
- Step 1: Write the proportion equation
7,117,840.98 : 9,822,605.54 = 3,854,645.64 : x - Step 2: Convert to fraction form
7,117,840.98/9,822,605.54 = 3,854,645.64/x - Step 3: Cross multiply
7,117,840.98x = 9,822,605.54 × 3,854,645.64 - Step 4: Simplify right side
7,117,840.98x = 37,862,663,598,927.62 - Step 5: Solve for x
x = 37,862,663,598,927.62/7,117,840.98 - Step 6: Final answer
x = 5,319,402.85
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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.