Finding the Fourth Proportional to 19,215,454.20, 26,517,309.30 and 10,513,663.08
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Solution
The fourth proportional to 19,215,454.20, 26,517,309.30 and 10,513,663.08 is: 14,508,845.48
Step by Step Solution
- Step 1: Write the proportion equation
19,215,454.20 : 26,517,309.30 = 10,513,663.08 : x - Step 2: Convert to fraction form
19,215,454.20/26,517,309.30 = 10,513,663.08/x - Step 3: Cross multiply
19,215,454.20x = 26,517,309.30 × 10,513,663.08 - Step 4: Simplify right side
19,215,454.20x = 278,794,055,768,350.66 - Step 5: Solve for x
x = 278,794,055,768,350.66/19,215,454.20 - Step 6: Final answer
x = 14,508,845.48
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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.