Finding the Fourth Proportional to 1,310,289,983,177.10, 1,965,434,974,765.60 and 639,174,384,098.65
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Solution
The fourth proportional to 1,310,289,983,177.10, 1,965,434,974,765.60 and 639,174,384,098.65 is: 958,761,576,147.95
Step by Step Solution
- Step 1: Write the proportion equation
1,310,289,983,177.10 : 1,965,434,974,765.60 = 639,174,384,098.65 : x - Step 2: Convert to fraction form
1,310,289,983,177.10/1,965,434,974,765.60 = 639,174,384,098.65/x - Step 3: Cross multiply
1,310,289,983,177.10x = 1,965,434,974,765.60 × 639,174,384,098.65 - Step 4: Simplify right side
1,310,289,983,177.10x = 1,256,255,689,481,748,096,221,184 - Step 5: Solve for x
x = 1,256,255,689,481,748,096,221,184/1,310,289,983,177.10 - Step 6: Final answer
x = 958,761,576,147.95
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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.