Finding the Fourth Proportional to 79,439,948.30, 119,159,922.45 and 49,206,860.30
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Solution
The fourth proportional to 79,439,948.30, 119,159,922.45 and 49,206,860.30 is: 73,810,290.45
Step by Step Solution
- Step 1: Write the proportion equation
79,439,948.30 : 119,159,922.45 = 49,206,860.30 : x - Step 2: Convert to fraction form
79,439,948.30/119,159,922.45 = 49,206,860.30/x - Step 3: Cross multiply
79,439,948.30x = 119,159,922.45 × 49,206,860.30 - Step 4: Simplify right side
79,439,948.30x = 5,863,485,657,355,984 - Step 5: Solve for x
x = 5,863,485,657,355,984/79,439,948.30 - Step 6: Final answer
x = 73,810,290.45
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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.