Finding the Fourth Proportional to 19,178,218.64, 26,466,746.28 and 11,029,463.12
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Solution
The fourth proportional to 19,178,218.64, 26,466,746.28 and 11,029,463.12 is: 15,221,121.81
Step by Step Solution
- Step 1: Write the proportion equation
19,178,218.64 : 26,466,746.28 = 11,029,463.12 : x - Step 2: Convert to fraction form
19,178,218.64/26,466,746.28 = 11,029,463.12/x - Step 3: Cross multiply
19,178,218.64x = 26,466,746.28 × 11,029,463.12 - Step 4: Simplify right side
19,178,218.64x = 291,914,002,001,657.19 - Step 5: Solve for x
x = 291,914,002,001,657.19/19,178,218.64 - Step 6: Final answer
x = 15,221,121.81
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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.