Finding the Fourth Proportional to 315,578,712.40, 473,144,119.80 and 121,415,102.80
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Solution
The fourth proportional to 315,578,712.40, 473,144,119.80 and 121,415,102.80 is: 182,036,492.60
Step by Step Solution
- Step 1: Write the proportion equation
315,578,712.40 : 473,144,119.80 = 121,415,102.80 : x - Step 2: Convert to fraction form
315,578,712.40/473,144,119.80 = 121,415,102.80/x - Step 3: Cross multiply
315,578,712.40x = 473,144,119.80 × 121,415,102.80 - Step 4: Simplify right side
315,578,712.40x = 57,446,841,944,732,512 - Step 5: Solve for x
x = 57,446,841,944,732,512/315,578,712.40 - Step 6: Final answer
x = 182,036,492.60
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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.