Finding the Fourth Proportional to 1,679,877,884,905.90, 2,318,206,809,717.40 and 938,295,543,209.85
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Solution
The fourth proportional to 1,679,877,884,905.90, 2,318,206,809,717.40 and 938,295,543,209.85 is: 1,294,834,069,393.33
Step by Step Solution
- Step 1: Write the proportion equation
1,679,877,884,905.90 : 2,318,206,809,717.40 = 938,295,543,209.85 : x - Step 2: Convert to fraction form
1,679,877,884,905.90/2,318,206,809,717.40 = 938,295,543,209.85/x - Step 3: Cross multiply
1,679,877,884,905.90x = 2,318,206,809,717.40 × 938,295,543,209.85 - Step 4: Simplify right side
1,679,877,884,905.90x = 2,175,163,117,796,560,929,292,288 - Step 5: Solve for x
x = 2,175,163,117,796,560,929,292,288/1,679,877,884,905.90 - Step 6: Final answer
x = 1,294,834,069,393.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.