Finding the Fourth Proportional to 14,346,605.40, 19,798,057.92 and 7,820,290.68
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Solution
The fourth proportional to 14,346,605.40, 19,798,057.92 and 7,820,290.68 is: 10,791,860.76
Step by Step Solution
- Step 1: Write the proportion equation
14,346,605.40 : 19,798,057.92 = 7,820,290.68 : x - Step 2: Convert to fraction form
14,346,605.40/19,798,057.92 = 7,820,290.68/x - Step 3: Cross multiply
14,346,605.40x = 19,798,057.92 × 7,820,290.68 - Step 4: Simplify right side
14,346,605.40x = 154,826,567,833,876.19 - Step 5: Solve for x
x = 154,826,567,833,876.19/14,346,605.40 - Step 6: Final answer
x = 10,791,860.76
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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.