Finding the Fourth Proportional to 207,242,802.20, 310,864,203.30 and 146,726,859.80
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Solution
The fourth proportional to 207,242,802.20, 310,864,203.30 and 146,726,859.80 is: 220,090,289.70
Step by Step Solution
- Step 1: Write the proportion equation
207,242,802.20 : 310,864,203.30 = 146,726,859.80 : x - Step 2: Convert to fraction form
207,242,802.20/310,864,203.30 = 146,726,859.80/x - Step 3: Cross multiply
207,242,802.20x = 310,864,203.30 × 146,726,859.80 - Step 4: Simplify right side
207,242,802.20x = 45,612,128,374,437,800 - Step 5: Solve for x
x = 45,612,128,374,437,800/207,242,802.20 - Step 6: Final answer
x = 220,090,289.70
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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.