Finding the Fourth Proportional to 149,779,841.70, 209,974,893.90 and 149,779,841.70
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Solution
The fourth proportional to 149,779,841.70, 209,974,893.90 and 149,779,841.70 is: 209,974,893.90
Step by Step Solution
- Step 1: Write the proportion equation
149,779,841.70 : 209,974,893.90 = 149,779,841.70 : x - Step 2: Convert to fraction form
149,779,841.70/209,974,893.90 = 149,779,841.70/x - Step 3: Cross multiply
149,779,841.70x = 209,974,893.90 × 149,779,841.70 - Step 4: Simplify right side
149,779,841.70x = 31,450,006,369,316,296 - Step 5: Solve for x
x = 31,450,006,369,316,296/149,779,841.70 - Step 6: Final answer
x = 209,974,893.90
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.