Finding the Fourth Proportional to 1,259,596,921.90, 1,888,009,699.65 and 441,288,006.70
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Solution
The fourth proportional to 1,259,596,921.90, 1,888,009,699.65 and 441,288,006.70 is: 661,446,548.89
Step by Step Solution
- Step 1: Write the proportion equation
1,259,596,921.90 : 1,888,009,699.65 = 441,288,006.70 : x - Step 2: Convert to fraction form
1,259,596,921.90/1,888,009,699.65 = 441,288,006.70/x - Step 3: Cross multiply
1,259,596,921.90x = 1,888,009,699.65 × 441,288,006.70 - Step 4: Simplify right side
1,259,596,921.90x = 833,156,036,988,814,208 - Step 5: Solve for x
x = 833,156,036,988,814,208/1,259,596,921.90 - Step 6: Final answer
x = 661,446,548.89
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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.