Finding the Fourth Proportional to 81,072,883,143.43, 121,629,580,085.84 and 57,215,968,864.71
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Solution
The fourth proportional to 81,072,883,143.43, 121,629,580,085.84 and 57,215,968,864.71 is: 85,838,248,220.52
Step by Step Solution
- Step 1: Write the proportion equation
81,072,883,143.43 : 121,629,580,085.84 = 57,215,968,864.71 : x - Step 2: Convert to fraction form
81,072,883,143.43/121,629,580,085.84 = 57,215,968,864.71/x - Step 3: Cross multiply
81,072,883,143.43x = 121,629,580,085.84 × 57,215,968,864.71 - Step 4: Simplify right side
81,072,883,143.43x = 6,959,154,267,219,172,524,032 - Step 5: Solve for x
x = 6,959,154,267,219,172,524,032/81,072,883,143.43 - Step 6: Final answer
x = 85,838,248,220.52
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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.