Finding the Fourth Proportional to 893,662,858.20, 1,340,494,287.30 and 829,165,603.80
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Solution
The fourth proportional to 893,662,858.20, 1,340,494,287.30 and 829,165,603.80 is: 1,243,748,405.70
Step by Step Solution
- Step 1: Write the proportion equation
893,662,858.20 : 1,340,494,287.30 = 829,165,603.80 : x - Step 2: Convert to fraction form
893,662,858.20/1,340,494,287.30 = 829,165,603.80/x - Step 3: Cross multiply
893,662,858.20x = 1,340,494,287.30 × 829,165,603.80 - Step 4: Simplify right side
893,662,858.20x = 1,111,491,755,119,555,072 - Step 5: Solve for x
x = 1,111,491,755,119,555,072/893,662,858.20 - Step 6: Final answer
x = 1,243,748,405.70
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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.