Finding the Fourth Proportional to 660,106,812.70, 990,160,219.05 and 585,492,496.30
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Solution
The fourth proportional to 660,106,812.70, 990,160,219.05 and 585,492,496.30 is: 878,238,744.45
Step by Step Solution
- Step 1: Write the proportion equation
660,106,812.70 : 990,160,219.05 = 585,492,496.30 : x - Step 2: Convert to fraction form
660,106,812.70/990,160,219.05 = 585,492,496.30/x - Step 3: Cross multiply
660,106,812.70x = 990,160,219.05 × 585,492,496.30 - Step 4: Simplify right side
660,106,812.70x = 579,731,378,388,539,264 - Step 5: Solve for x
x = 579,731,378,388,539,264/660,106,812.70 - Step 6: Final answer
x = 878,238,744.45
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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.