Finding the Fourth Proportional to 122,868,639.11, 169,557,575.70 and 67,114,038.17
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Solution
The fourth proportional to 122,868,639.11, 169,557,575.70 and 67,114,038.17 is: 92,616,746.56
Step by Step Solution
- Step 1: Write the proportion equation
122,868,639.11 : 169,557,575.70 = 67,114,038.17 : x - Step 2: Convert to fraction form
122,868,639.11/169,557,575.70 = 67,114,038.17/x - Step 3: Cross multiply
122,868,639.11x = 169,557,575.70 × 67,114,038.17 - Step 4: Simplify right side
122,868,639.11x = 11,379,693,607,966,358 - Step 5: Solve for x
x = 11,379,693,607,966,358/122,868,639.11 - Step 6: Final answer
x = 92,616,746.56
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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.