Finding the Fourth Proportional to 155,341,108,191.71, 212,813,779,153.46 and 149,533,153,645.98
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Solution
The fourth proportional to 155,341,108,191.71, 212,813,779,153.46 and 149,533,153,645.98 is: 204,857,013,745.92
Step by Step Solution
- Step 1: Write the proportion equation
155,341,108,191.71 : 212,813,779,153.46 = 149,533,153,645.98 : x - Step 2: Convert to fraction form
155,341,108,191.71/212,813,779,153.46 = 149,533,153,645.98/x - Step 3: Cross multiply
155,341,108,191.71x = 212,813,779,153.46 × 149,533,153,645.98 - Step 4: Simplify right side
155,341,108,191.71x = 31,822,715,536,135,992,377,344 - Step 5: Solve for x
x = 31,822,715,536,135,992,377,344/155,341,108,191.71 - Step 6: Final answer
x = 204,857,013,745.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.