Finding the Fourth Proportional to 919,328,625.90, 1,378,992,938.85 and 804,537,369.90
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Solution
The fourth proportional to 919,328,625.90, 1,378,992,938.85 and 804,537,369.90 is: 1,206,806,054.85
Step by Step Solution
- Step 1: Write the proportion equation
919,328,625.90 : 1,378,992,938.85 = 804,537,369.90 : x - Step 2: Convert to fraction form
919,328,625.90/1,378,992,938.85 = 804,537,369.90/x - Step 3: Cross multiply
919,328,625.90x = 1,378,992,938.85 × 804,537,369.90 - Step 4: Simplify right side
919,328,625.90x = 1,109,451,352,133,050,368 - Step 5: Solve for x
x = 1,109,451,352,133,050,368/919,328,625.90 - Step 6: Final answer
x = 1,206,806,054.85
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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.