Finding the Fourth Proportional to 85,865,885,257.86, 128,857,661,381.79 and 29,968,372,816.02
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Solution
The fourth proportional to 85,865,885,257.86, 128,857,661,381.79 and 29,968,372,816.02 is: 44,973,092,921.52
Step by Step Solution
- Step 1: Write the proportion equation
85,865,885,257.86 : 128,857,661,381.79 = 29,968,372,816.02 : x - Step 2: Convert to fraction form
85,865,885,257.86/128,857,661,381.79 = 29,968,372,816.02/x - Step 3: Cross multiply
85,865,885,257.86x = 128,857,661,381.79 × 29,968,372,816.02 - Step 4: Simplify right side
85,865,885,257.86x = 3,861,654,436,489,945,677,824 - Step 5: Solve for x
x = 3,861,654,436,489,945,677,824/85,865,885,257.86 - Step 6: Final answer
x = 44,973,092,921.52
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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.