Finding the Fourth Proportional to 1,824,140,858.94, 2,517,246,945.18 and 988,747,493.40
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Solution
The fourth proportional to 1,824,140,858.94, 2,517,246,945.18 and 988,747,493.40 is: 1,364,434,985.99
Step by Step Solution
- Step 1: Write the proportion equation
1,824,140,858.94 : 2,517,246,945.18 = 988,747,493.40 : x - Step 2: Convert to fraction form
1,824,140,858.94/2,517,246,945.18 = 988,747,493.40/x - Step 3: Cross multiply
1,824,140,858.94x = 2,517,246,945.18 × 988,747,493.40 - Step 4: Simplify right side
1,824,140,858.94x = 2,488,921,607,315,531,776 - Step 5: Solve for x
x = 2,488,921,607,315,531,776/1,824,140,858.94 - Step 6: Final answer
x = 1,364,434,985.99
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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.