Finding the Fourth Proportional to 1,259,596,919.90, 1,888,009,696.65 and 441,288,004.70
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Solution
The fourth proportional to 1,259,596,919.90, 1,888,009,696.65 and 441,288,004.70 is: 661,446,545.90
Step by Step Solution
- Step 1: Write the proportion equation
1,259,596,919.90 : 1,888,009,696.65 = 441,288,004.70 : x - Step 2: Convert to fraction form
1,259,596,919.90/1,888,009,696.65 = 441,288,004.70/x - Step 3: Cross multiply
1,259,596,919.90x = 1,888,009,696.65 × 441,288,004.70 - Step 4: Simplify right side
1,259,596,919.90x = 833,156,031,888,930,816 - Step 5: Solve for x
x = 833,156,031,888,930,816/1,259,596,919.90 - Step 6: Final answer
x = 661,446,545.90
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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.