Finding the Fourth Proportional to 81,192,616.20, 121,788,924.30 and 63,973,927.80
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Solution
The fourth proportional to 81,192,616.20, 121,788,924.30 and 63,973,927.80 is: 95,960,891.70
Step by Step Solution
- Step 1: Write the proportion equation
81,192,616.20 : 121,788,924.30 = 63,973,927.80 : x - Step 2: Convert to fraction form
81,192,616.20/121,788,924.30 = 63,973,927.80/x - Step 3: Cross multiply
81,192,616.20x = 121,788,924.30 × 63,973,927.80 - Step 4: Simplify right side
81,192,616.20x = 7,791,315,850,007,865 - Step 5: Solve for x
x = 7,791,315,850,007,865/81,192,616.20 - Step 6: Final answer
x = 95,960,891.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.