Finding the Fourth Proportional to 136,676,026.74, 188,612,794.99 and 77,149,852.91
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Solution
The fourth proportional to 136,676,026.74, 188,612,794.99 and 77,149,852.91 is: 106,466,728.20
Step by Step Solution
- Step 1: Write the proportion equation
136,676,026.74 : 188,612,794.99 = 77,149,852.91 : x - Step 2: Convert to fraction form
136,676,026.74/188,612,794.99 = 77,149,852.91/x - Step 3: Cross multiply
136,676,026.74x = 188,612,794.99 × 77,149,852.91 - Step 4: Simplify right side
136,676,026.74x = 14,551,449,390,422,484 - Step 5: Solve for x
x = 14,551,449,390,422,484/136,676,026.74 - Step 6: Final answer
x = 106,466,728.20
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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.