Finding the Fourth Proportional to 5,185,737,668.17, 7,156,318,331.87 and 2,838,894,212.17
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Solution
The fourth proportional to 5,185,737,668.17, 7,156,318,331.87 and 2,838,894,212.17 is: 3,917,674,204.29
Step by Step Solution
- Step 1: Write the proportion equation
5,185,737,668.17 : 7,156,318,331.87 = 2,838,894,212.17 : x - Step 2: Convert to fraction form
5,185,737,668.17/7,156,318,331.87 = 2,838,894,212.17/x - Step 3: Cross multiply
5,185,737,668.17x = 7,156,318,331.87 × 2,838,894,212.17 - Step 4: Simplify right side
5,185,737,668.17x = 20,316,030,692,791,812,096 - Step 5: Solve for x
x = 20,316,030,692,791,812,096/5,185,737,668.17 - Step 6: Final answer
x = 3,917,674,204.29
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1.5x scale
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.