Finding the Fourth Proportional to 5,391,880,920.80, 8,087,821,381.20 and 4,521,167,986.40
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Solution
The fourth proportional to 5,391,880,920.80, 8,087,821,381.20 and 4,521,167,986.40 is: 6,781,751,979.60
Step by Step Solution
- Step 1: Write the proportion equation
5,391,880,920.80 : 8,087,821,381.20 = 4,521,167,986.40 : x - Step 2: Convert to fraction form
5,391,880,920.80/8,087,821,381.20 = 4,521,167,986.40/x - Step 3: Cross multiply
5,391,880,920.80x = 8,087,821,381.20 × 4,521,167,986.40 - Step 4: Simplify right side
5,391,880,920.80x = 36,566,399,108,402,868,224 - Step 5: Solve for x
x = 36,566,399,108,402,868,224/5,391,880,920.80 - Step 6: Final answer
x = 6,781,751,979.60
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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.