Finding the Fourth Proportional to 19,779,404.80, 29,669,107.20 and 19,425,110.80
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Solution
The fourth proportional to 19,779,404.80, 29,669,107.20 and 19,425,110.80 is: 29,137,666.20
Step by Step Solution
- Step 1: Write the proportion equation
19,779,404.80 : 29,669,107.20 = 19,425,110.80 : x - Step 2: Convert to fraction form
19,779,404.80/29,669,107.20 = 19,425,110.80/x - Step 3: Cross multiply
19,779,404.80x = 29,669,107.20 × 19,425,110.80 - Step 4: Simplify right side
19,779,404.80x = 576,325,694,697,077.75 - Step 5: Solve for x
x = 576,325,694,697,077.75/19,779,404.80 - Step 6: Final answer
x = 29,137,666.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.