Finding the Fourth Proportional to 1,338,306,918.57, 2,006,212,275.14 and 452,375,868.83
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Solution
The fourth proportional to 1,338,306,918.57, 2,006,212,275.14 and 452,375,868.83 is: 678,141,918.28
Step by Step Solution
- Step 1: Write the proportion equation
1,338,306,918.57 : 2,006,212,275.14 = 452,375,868.83 : x - Step 2: Convert to fraction form
1,338,306,918.57/2,006,212,275.14 = 452,375,868.83/x - Step 3: Cross multiply
1,338,306,918.57x = 2,006,212,275.14 × 452,375,868.83 - Step 4: Simplify right side
1,338,306,918.57x = 907,562,021,011,575,552 - Step 5: Solve for x
x = 907,562,021,011,575,552/1,338,306,918.57 - Step 6: Final answer
x = 678,141,918.28
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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.