Finding the Fourth Proportional to 1,089,754,550.20, 1,504,718,148.06 and 877,386,787
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Solution
The fourth proportional to 1,089,754,550.20, 1,504,718,148.06 and 877,386,787 is: 1,211,483,651.09
Step by Step Solution
- Step 1: Write the proportion equation
1,089,754,550.20 : 1,504,718,148.06 = 877,386,787 : x - Step 2: Convert to fraction form
1,089,754,550.20/1,504,718,148.06 = 877,386,787/x - Step 3: Cross multiply
1,089,754,550.20x = 1,504,718,148.06 × 877,386,787 - Step 4: Simplify right side
1,089,754,550.20x = 1,320,219,821,266,953,728 - Step 5: Solve for x
x = 1,320,219,821,266,953,728/1,089,754,550.20 - Step 6: Final answer
x = 1,211,483,651.09
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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.