Finding the Fourth Proportional to 3,117,835,391.16, 4,302,576,415.17 and 1,688,879,553.06
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Solution
The fourth proportional to 3,117,835,391.16, 4,302,576,415.17 and 1,688,879,553.06 is: 2,330,634,052.61
Step by Step Solution
- Step 1: Write the proportion equation
3,117,835,391.16 : 4,302,576,415.17 = 1,688,879,553.06 : x - Step 2: Convert to fraction form
3,117,835,391.16/4,302,576,415.17 = 1,688,879,553.06/x - Step 3: Cross multiply
3,117,835,391.16x = 4,302,576,415.17 × 1,688,879,553.06 - Step 4: Simplify right side
3,117,835,391.16x = 7,266,533,333,058,806,784 - Step 5: Solve for x
x = 7,266,533,333,058,806,784/3,117,835,391.16 - Step 6: Final answer
x = 2,330,634,052.61
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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.