Finding the Fourth Proportional to 314,487,218.40, 471,730,827.60 and 161,432,210.40
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Solution
The fourth proportional to 314,487,218.40, 471,730,827.60 and 161,432,210.40 is: 242,148,315.60
Step by Step Solution
- Step 1: Write the proportion equation
314,487,218.40 : 471,730,827.60 = 161,432,210.40 : x - Step 2: Convert to fraction form
314,487,218.40/471,730,827.60 = 161,432,210.40/x - Step 3: Cross multiply
314,487,218.40x = 471,730,827.60 × 161,432,210.40 - Step 4: Simplify right side
314,487,218.40x = 76,152,550,213,289,328 - Step 5: Solve for x
x = 76,152,550,213,289,328/314,487,218.40 - Step 6: Final answer
x = 242,148,315.60
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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.