Finding the Fourth Proportional to 155,526,980.20, 233,290,470.30 and 121,262,813.80
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Solution
The fourth proportional to 155,526,980.20, 233,290,470.30 and 121,262,813.80 is: 181,894,220.70
Step by Step Solution
- Step 1: Write the proportion equation
155,526,980.20 : 233,290,470.30 = 121,262,813.80 : x - Step 2: Convert to fraction form
155,526,980.20/233,290,470.30 = 121,262,813.80/x - Step 3: Cross multiply
155,526,980.20x = 233,290,470.30 × 121,262,813.80 - Step 4: Simplify right side
155,526,980.20x = 28,289,458,861,303,332 - Step 5: Solve for x
x = 28,289,458,861,303,332/155,526,980.20 - Step 6: Final answer
x = 181,894,220.70
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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.