Finding the Fourth Proportional to 76,423,590.18, 105,461,770.05 and 41,615,517.06
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Solution
The fourth proportional to 76,423,590.18, 105,461,770.05 and 41,615,517.06 is: 57,427,897.33
Step by Step Solution
- Step 1: Write the proportion equation
76,423,590.18 : 105,461,770.05 = 41,615,517.06 : x - Step 2: Convert to fraction form
76,423,590.18/105,461,770.05 = 41,615,517.06/x - Step 3: Cross multiply
76,423,590.18x = 105,461,770.05 × 41,615,517.06 - Step 4: Simplify right side
76,423,590.18x = 4,388,846,090,693,572 - Step 5: Solve for x
x = 4,388,846,090,693,572/76,423,590.18 - Step 6: Final answer
x = 57,427,897.33
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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.