Finding the Fourth Proportional to 783,171,798.08, 1,080,807,918.56 and 430,780,578.08
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Solution
The fourth proportional to 783,171,798.08, 1,080,807,918.56 and 430,780,578.08 is: 594,494,159.64
Step by Step Solution
- Step 1: Write the proportion equation
783,171,798.08 : 1,080,807,918.56 = 430,780,578.08 : x - Step 2: Convert to fraction form
783,171,798.08/1,080,807,918.56 = 430,780,578.08/x - Step 3: Cross multiply
783,171,798.08x = 1,080,807,918.56 × 430,780,578.08 - Step 4: Simplify right side
783,171,798.08x = 465,591,059,950,718,336 - Step 5: Solve for x
x = 465,591,059,950,718,336/783,171,798.08 - Step 6: Final answer
x = 594,494,159.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.