Finding the Fourth Proportional to 1,328,492,652.76, 1,992,929,158.50 and 408,446,242.84
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Solution
The fourth proportional to 1,328,492,652.76, 1,992,929,158.50 and 408,446,242.84 is: 612,727,835.07
Step by Step Solution
- Step 1: Write the proportion equation
1,328,492,652.76 : 1,992,929,158.50 = 408,446,242.84 : x - Step 2: Convert to fraction form
1,328,492,652.76/1,992,929,158.50 = 408,446,242.84/x - Step 3: Cross multiply
1,328,492,652.76x = 1,992,929,158.50 × 408,446,242.84 - Step 4: Simplify right side
1,328,492,652.76x = 814,004,427,035,607,808 - Step 5: Solve for x
x = 814,004,427,035,607,808/1,328,492,652.76 - Step 6: Final answer
x = 612,727,835.07
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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.