Finding the Fourth Proportional to 1,631,994,209.55, 2,448,471,604.13 and 526,578,329.12
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Solution
The fourth proportional to 1,631,994,209.55, 2,448,471,604.13 and 526,578,329.12 is: 790,022,463.72
Step by Step Solution
- Step 1: Write the proportion equation
1,631,994,209.55 : 2,448,471,604.13 = 526,578,329.12 : x - Step 2: Convert to fraction form
1,631,994,209.55/2,448,471,604.13 = 526,578,329.12/x - Step 3: Cross multiply
1,631,994,209.55x = 2,448,471,604.13 × 526,578,329.12 - Step 4: Simplify right side
1,631,994,209.55x = 1,289,312,086,200,541,440 - Step 5: Solve for x
x = 1,289,312,086,200,541,440/1,631,994,209.55 - Step 6: Final answer
x = 790,022,463.72
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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.