Finding the Fourth Proportional to 911,783,048.10, 1,368,346,418.55 and 366,915,617.70
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Solution
The fourth proportional to 911,783,048.10, 1,368,346,418.55 and 366,915,617.70 is: 550,643,787.95
Step by Step Solution
- Step 1: Write the proportion equation
911,783,048.10 : 1,368,346,418.55 = 366,915,617.70 : x - Step 2: Convert to fraction form
911,783,048.10/1,368,346,418.55 = 366,915,617.70/x - Step 3: Cross multiply
911,783,048.10x = 1,368,346,418.55 × 366,915,617.70 - Step 4: Simplify right side
911,783,048.10x = 502,067,671,389,855,936 - Step 5: Solve for x
x = 502,067,671,389,855,936/911,783,048.10 - Step 6: Final answer
x = 550,643,787.95
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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.