Finding the Fourth Proportional to 315,552,620.40, 473,104,981.80 and 121,389,010.80
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Solution
The fourth proportional to 315,552,620.40, 473,104,981.80 and 121,389,010.80 is: 181,997,365.99
Step by Step Solution
- Step 1: Write the proportion equation
315,552,620.40 : 473,104,981.80 = 121,389,010.80 : x - Step 2: Convert to fraction form
315,552,620.40/473,104,981.80 = 121,389,010.80/x - Step 3: Cross multiply
315,552,620.40x = 473,104,981.80 × 121,389,010.80 - Step 4: Simplify right side
315,552,620.40x = 57,429,745,745,254,000 - Step 5: Solve for x
x = 57,429,745,745,254,000/315,552,620.40 - Step 6: Final answer
x = 181,997,365.99
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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.