Finding the Fourth Proportional to 1,553,489,391.11, 2,144,326,253.42 and 1,236,531,038.63
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Solution
The fourth proportional to 1,553,489,391.11, 2,144,326,253.42 and 1,236,531,038.63 is: 1,706,819,489.39
Step by Step Solution
- Step 1: Write the proportion equation
1,553,489,391.11 : 2,144,326,253.42 = 1,236,531,038.63 : x - Step 2: Convert to fraction form
1,553,489,391.11/2,144,326,253.42 = 1,236,531,038.63/x - Step 3: Cross multiply
1,553,489,391.11x = 2,144,326,253.42 × 1,236,531,038.63 - Step 4: Simplify right side
1,553,489,391.11x = 2,651,525,969,295,378,944 - Step 5: Solve for x
x = 2,651,525,969,295,378,944/1,553,489,391.11 - Step 6: Final answer
x = 1,706,819,489.39
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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.