Finding the Fourth Proportional to 1,679,877,884,907.20, 2,318,206,809,719.40 and 938,295,543,211.33
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Solution
The fourth proportional to 1,679,877,884,907.20, 2,318,206,809,719.40 and 938,295,543,211.33 is: 1,294,834,069,395.48
Step by Step Solution
- Step 1: Write the proportion equation
1,679,877,884,907.20 : 2,318,206,809,719.40 = 938,295,543,211.33 : x - Step 2: Convert to fraction form
1,679,877,884,907.20/2,318,206,809,719.40 = 938,295,543,211.33/x - Step 3: Cross multiply
1,679,877,884,907.20x = 2,318,206,809,719.40 × 938,295,543,211.33 - Step 4: Simplify right side
1,679,877,884,907.20x = 2,175,163,117,801,868,435,128,320 - Step 5: Solve for x
x = 2,175,163,117,801,868,435,128,320/1,679,877,884,907.20 - Step 6: Final answer
x = 1,294,834,069,395.48
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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.