Finding the Fourth Proportional to 1,447,674,754, 1,997,631,307.08 and 812,449,550.80
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Solution
The fourth proportional to 1,447,674,754, 1,997,631,307.08 and 812,449,550.80 is: 1,121,090,668.75
Step by Step Solution
- Step 1: Write the proportion equation
1,447,674,754 : 1,997,631,307.08 = 812,449,550.80 : x - Step 2: Convert to fraction form
1,447,674,754/1,997,631,307.08 = 812,449,550.80/x - Step 3: Cross multiply
1,447,674,754x = 1,997,631,307.08 × 812,449,550.80 - Step 4: Simplify right side
1,447,674,754x = 1,622,974,658,101,162,752 - Step 5: Solve for x
x = 1,622,974,658,101,162,752/1,447,674,754 - Step 6: Final answer
x = 1,121,090,668.75
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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.