Finding the Fourth Proportional to 1,765,772,523.62, 2,436,876,149.94 and 972,818,338.70
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Solution
The fourth proportional to 1,765,772,523.62, 2,436,876,149.94 and 972,818,338.70 is: 1,342,549,946.89
Step by Step Solution
- Step 1: Write the proportion equation
1,765,772,523.62 : 2,436,876,149.94 = 972,818,338.70 : x - Step 2: Convert to fraction form
1,765,772,523.62/2,436,876,149.94 = 972,818,338.70/x - Step 3: Cross multiply
1,765,772,523.62x = 2,436,876,149.94 × 972,818,338.70 - Step 4: Simplify right side
1,765,772,523.62x = 2,370,637,807,802,283,008 - Step 5: Solve for x
x = 2,370,637,807,802,283,008/1,765,772,523.62 - Step 6: Final answer
x = 1,342,549,946.89
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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.