Finding the Fourth Proportional to 7,839,460,931.20, 11,761,487,201.28 and 2,318,865,975.04
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Solution
The fourth proportional to 7,839,460,931.20, 11,761,487,201.28 and 2,318,865,975.04 is: 3,478,978,047.89
Step by Step Solution
- Step 1: Write the proportion equation
7,839,460,931.20 : 11,761,487,201.28 = 2,318,865,975.04 : x - Step 2: Convert to fraction form
7,839,460,931.20/11,761,487,201.28 = 2,318,865,975.04/x - Step 3: Cross multiply
7,839,460,931.20x = 11,761,487,201.28 × 2,318,865,975.04 - Step 4: Simplify right side
7,839,460,931.20x = 27,273,312,486,916,628,480 - Step 5: Solve for x
x = 27,273,312,486,916,628,480/7,839,460,931.20 - Step 6: Final answer
x = 3,478,978,047.89
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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.