Finding the Fourth Proportional to 13,918,705.80, 19,207,309.38 and 7,724,022.84
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Solution
The fourth proportional to 13,918,705.80, 19,207,309.38 and 7,724,022.84 is: 10,658,871.48
Step by Step Solution
- Step 1: Write the proportion equation
13,918,705.80 : 19,207,309.38 = 7,724,022.84 : x - Step 2: Convert to fraction form
13,918,705.80/19,207,309.38 = 7,724,022.84/x - Step 3: Cross multiply
13,918,705.80x = 19,207,309.38 × 7,724,022.84 - Step 4: Simplify right side
13,918,705.80x = 148,357,696,346,066.22 - Step 5: Solve for x
x = 148,357,696,346,066.22/13,918,705.80 - Step 6: Final answer
x = 10,658,871.48
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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.