Finding the Fourth Proportional to 5,215,551,758.60, 7,820,640,252.30 and 1,942,316,097.80
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Solution
The fourth proportional to 5,215,551,758.60, 7,820,640,252.30 and 1,942,316,097.80 is: 2,912,473,341.31
Step by Step Solution
- Step 1: Write the proportion equation
5,215,551,758.60 : 7,820,640,252.30 = 1,942,316,097.80 : x - Step 2: Convert to fraction form
5,215,551,758.60/7,820,640,252.30 = 1,942,316,097.80/x - Step 3: Cross multiply
5,215,551,758.60x = 7,820,640,252.30 × 1,942,316,097.80 - Step 4: Simplify right side
5,215,551,758.60x = 15,190,155,457,144,942,592 - Step 5: Solve for x
x = 15,190,155,457,144,942,592/5,215,551,758.60 - Step 6: Final answer
x = 2,912,473,341.31
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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.