Finding the Fourth Proportional to 19,885,565.93, 27,445,847.69 and 12,446,677.40
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Solution
The fourth proportional to 19,885,565.93, 27,445,847.69 and 12,446,677.40 is: 17,178,772.45
Step by Step Solution
- Step 1: Write the proportion equation
19,885,565.93 : 27,445,847.69 = 12,446,677.40 : x - Step 2: Convert to fraction form
19,885,565.93/27,445,847.69 = 12,446,677.40/x - Step 3: Cross multiply
19,885,565.93x = 27,445,847.69 × 12,446,677.40 - Step 4: Simplify right side
19,885,565.93x = 341,609,612,060,852.62 - Step 5: Solve for x
x = 341,609,612,060,852.62/19,885,565.93 - Step 6: Final answer
x = 17,178,772.45
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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.