Finding the Fourth Proportional to 20,778,470.64, 31,167,706.08 and 5,632,402.08
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Solution
The fourth proportional to 20,778,470.64, 31,167,706.08 and 5,632,402.08 is: 8,448,603.15
Step by Step Solution
- Step 1: Write the proportion equation
20,778,470.64 : 31,167,706.08 = 5,632,402.08 : x - Step 2: Convert to fraction form
20,778,470.64/31,167,706.08 = 5,632,402.08/x - Step 3: Cross multiply
20,778,470.64x = 31,167,706.08 × 5,632,402.08 - Step 4: Simplify right side
20,778,470.64x = 175,549,052,553,820.62 - Step 5: Solve for x
x = 175,549,052,553,820.62/20,778,470.64 - Step 6: Final answer
x = 8,448,603.15
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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.