Finding the Fourth Proportional to 77,122,294.24, 115,682,942 and 19,614,068.56
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Solution
The fourth proportional to 77,122,294.24, 115,682,942 and 19,614,068.56 is: 29,420,975.84
Step by Step Solution
- Step 1: Write the proportion equation
77,122,294.24 : 115,682,942 = 19,614,068.56 : x - Step 2: Convert to fraction form
77,122,294.24/115,682,942 = 19,614,068.56/x - Step 3: Cross multiply
77,122,294.24x = 115,682,942 × 19,614,068.56 - Step 4: Simplify right side
77,122,294.24x = 2,269,013,155,610,503.50 - Step 5: Solve for x
x = 2,269,013,155,610,503.50/77,122,294.24 - Step 6: Final answer
x = 29,420,975.84
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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.