Finding the Fourth Proportional to 19,708,515.07, 29,380,595.35 and 19,397,917.33
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Solution
The fourth proportional to 19,708,515.07, 29,380,595.35 and 19,397,917.33 is: 28,917,569.78
Step by Step Solution
- Step 1: Write the proportion equation
19,708,515.07 : 29,380,595.35 = 19,397,917.33 : x - Step 2: Convert to fraction form
19,708,515.07/29,380,595.35 = 19,397,917.33/x - Step 3: Cross multiply
19,708,515.07x = 29,380,595.35 × 19,397,917.33 - Step 4: Simplify right side
19,708,515.07x = 569,922,359,705,482.38 - Step 5: Solve for x
x = 569,922,359,705,482.38/19,708,515.07 - Step 6: Final answer
x = 28,917,569.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.