Finding the Fourth Proportional to 1,905,579,188,881.90, 2,859,212,875,640.40 and 998,801,497,281.68
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Solution
The fourth proportional to 1,905,579,188,881.90, 2,859,212,875,640.40 and 998,801,497,281.68 is: 1,498,644,673,440.37
Step by Step Solution
- Step 1: Write the proportion equation
1,905,579,188,881.90 : 2,859,212,875,640.40 = 998,801,497,281.68 : x - Step 2: Convert to fraction form
1,905,579,188,881.90/2,859,212,875,640.40 = 998,801,497,281.68/x - Step 3: Cross multiply
1,905,579,188,881.90x = 2,859,212,875,640.40 × 998,801,497,281.68 - Step 4: Simplify right side
1,905,579,188,881.90x = 2,855,786,101,236,689,243,471,872 - Step 5: Solve for x
x = 2,855,786,101,236,689,243,471,872/1,905,579,188,881.90 - Step 6: Final answer
x = 1,498,644,673,440.37
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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.