Finding the Fourth Proportional to 1,994,280,391.74, 2,752,448,684.04 and 1,159,389,237.96
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Solution
The fourth proportional to 1,994,280,391.74, 2,752,448,684.04 and 1,159,389,237.96 is: 1,600,155,823.39
Step by Step Solution
- Step 1: Write the proportion equation
1,994,280,391.74 : 2,752,448,684.04 = 1,159,389,237.96 : x - Step 2: Convert to fraction form
1,994,280,391.74/2,752,448,684.04 = 1,159,389,237.96/x - Step 3: Cross multiply
1,994,280,391.74x = 2,752,448,684.04 × 1,159,389,237.96 - Step 4: Simplify right side
1,994,280,391.74x = 3,191,159,382,313,140,224 - Step 5: Solve for x
x = 3,191,159,382,313,140,224/1,994,280,391.74 - Step 6: Final answer
x = 1,600,155,823.39
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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.