Finding the Fourth Proportional to 930,837,376.80, 1,396,256,065.20 and 917,232,487.20
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Solution
The fourth proportional to 930,837,376.80, 1,396,256,065.20 and 917,232,487.20 is: 1,375,848,730.80
Step by Step Solution
- Step 1: Write the proportion equation
930,837,376.80 : 1,396,256,065.20 = 917,232,487.20 : x - Step 2: Convert to fraction form
930,837,376.80/1,396,256,065.20 = 917,232,487.20/x - Step 3: Cross multiply
930,837,376.80x = 1,396,256,065.20 × 917,232,487.20 - Step 4: Simplify right side
930,837,376.80x = 1,280,691,423,451,481,600 - Step 5: Solve for x
x = 1,280,691,423,451,481,600/930,837,376.80 - Step 6: Final answer
x = 1,375,848,730.80
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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.