Finding the Fourth Proportional to 15,717,619.30, 21,690,281.62 and 8,842,101.37
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Solution
The fourth proportional to 15,717,619.30, 21,690,281.62 and 8,842,101.37 is: 12,202,081.32
Step by Step Solution
- Step 1: Write the proportion equation
15,717,619.30 : 21,690,281.62 = 8,842,101.37 : x - Step 2: Convert to fraction form
15,717,619.30/21,690,281.62 = 8,842,101.37/x - Step 3: Cross multiply
15,717,619.30x = 21,690,281.62 × 8,842,101.37 - Step 4: Simplify right side
15,717,619.30x = 191,787,668,827,887.81 - Step 5: Solve for x
x = 191,787,668,827,887.81/15,717,619.30 - Step 6: Final answer
x = 12,202,081.32
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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.