Finding the Fourth Proportional to 15,103,142,213.92, 20,835,724,269.36 and 14,402,915,548
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Solution
The fourth proportional to 15,103,142,213.92, 20,835,724,269.36 and 14,402,915,548 is: 19,869,718,021.75
Step by Step Solution
- Step 1: Write the proportion equation
15,103,142,213.92 : 20,835,724,269.36 = 14,402,915,548 : x - Step 2: Convert to fraction form
15,103,142,213.92/20,835,724,269.36 = 14,402,915,548/x - Step 3: Cross multiply
15,103,142,213.92x = 20,835,724,269.36 × 14,402,915,548 - Step 4: Simplify right side
15,103,142,213.92x = 300,095,177,033,006,120,960 - Step 5: Solve for x
x = 300,095,177,033,006,120,960/15,103,142,213.92 - Step 6: Final answer
x = 19,869,718,021.75
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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.