Finding the Fourth Proportional to 3,545,857,521.70, 5,318,786,282.55 and 960,928,497.70
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Solution
The fourth proportional to 3,545,857,521.70, 5,318,786,282.55 and 960,928,497.70 is: 1,441,392,746.55
Step by Step Solution
- Step 1: Write the proportion equation
3,545,857,521.70 : 5,318,786,282.55 = 960,928,497.70 : x - Step 2: Convert to fraction form
3,545,857,521.70/5,318,786,282.55 = 960,928,497.70/x - Step 3: Cross multiply
3,545,857,521.70x = 5,318,786,282.55 × 960,928,497.70 - Step 4: Simplify right side
3,545,857,521.70x = 5,110,973,312,078,139,392 - Step 5: Solve for x
x = 5,110,973,312,078,139,392/3,545,857,521.70 - Step 6: Final answer
x = 1,441,392,746.55
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Double scale
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Similar ratio
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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.