Finding the Fourth Proportional to 19,526,204.79, 26,940,708.68 and 15,383,376.77
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Solution
The fourth proportional to 19,526,204.79, 26,940,708.68 and 15,383,376.77 is: 21,224,763.15
Step by Step Solution
- Step 1: Write the proportion equation
19,526,204.79 : 26,940,708.68 = 15,383,376.77 : x - Step 2: Convert to fraction form
19,526,204.79/26,940,708.68 = 15,383,376.77/x - Step 3: Cross multiply
19,526,204.79x = 26,940,708.68 × 15,383,376.77 - Step 4: Simplify right side
19,526,204.79x = 414,439,071,863,628.94 - Step 5: Solve for x
x = 414,439,071,863,628.94/19,526,204.79 - Step 6: Final answer
x = 21,224,763.15
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1.5x scale
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.