Finding the Fourth Proportional to 994,557,237.40, 1,488,966,074.70 and 879,765,981.40
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Solution
The fourth proportional to 994,557,237.40, 1,488,966,074.70 and 879,765,981.40 is: 1,317,110,419.31
Step by Step Solution
- Step 1: Write the proportion equation
994,557,237.40 : 1,488,966,074.70 = 879,765,981.40 : x - Step 2: Convert to fraction form
994,557,237.40/1,488,966,074.70 = 879,765,981.40/x - Step 3: Cross multiply
994,557,237.40x = 1,488,966,074.70 × 879,765,981.40 - Step 4: Simplify right side
994,557,237.40x = 1,309,941,699,979,751,168 - Step 5: Solve for x
x = 1,309,941,699,979,751,168/994,557,237.40 - Step 6: Final answer
x = 1,317,110,419.31
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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.