Finding the Fourth Proportional to 1,527,946,612.24, 2,291,917,059.60 and 478,765,136.74
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Solution
The fourth proportional to 1,527,946,612.24, 2,291,917,059.60 and 478,765,136.74 is: 718,146,809.35
Step by Step Solution
- Step 1: Write the proportion equation
1,527,946,612.24 : 2,291,917,059.60 = 478,765,136.74 : x - Step 2: Convert to fraction form
1,527,946,612.24/2,291,917,059.60 = 478,765,136.74/x - Step 3: Cross multiply
1,527,946,612.24x = 2,291,917,059.60 × 478,765,136.74 - Step 4: Simplify right side
1,527,946,612.24x = 1,097,289,984,436,132,736 - Step 5: Solve for x
x = 1,097,289,984,436,132,736/1,527,946,612.24 - Step 6: Final answer
x = 718,146,809.35
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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.