Finding the Fourth Proportional to 1,461,665,117.80, 2,192,497,676.70 and 880,534,384.30
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Solution
The fourth proportional to 1,461,665,117.80, 2,192,497,676.70 and 880,534,384.30 is: 1,320,801,576.45
Step by Step Solution
- Step 1: Write the proportion equation
1,461,665,117.80 : 2,192,497,676.70 = 880,534,384.30 : x - Step 2: Convert to fraction form
1,461,665,117.80/2,192,497,676.70 = 880,534,384.30/x - Step 3: Cross multiply
1,461,665,117.80x = 2,192,497,676.70 × 880,534,384.30 - Step 4: Simplify right side
1,461,665,117.80x = 1,930,569,591,832,214,784 - Step 5: Solve for x
x = 1,930,569,591,832,214,784/1,461,665,117.80 - Step 6: Final answer
x = 1,320,801,576.45
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1.5x scale
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.