Finding the Fourth Proportional to 80,607,948.55, 120,734,692.49 and 66,616,337.21
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Solution
The fourth proportional to 80,607,948.55, 120,734,692.49 and 66,616,337.21 is: 99,778,038.42
Step by Step Solution
- Step 1: Write the proportion equation
80,607,948.55 : 120,734,692.49 = 66,616,337.21 : x - Step 2: Convert to fraction form
80,607,948.55/120,734,692.49 = 66,616,337.21/x - Step 3: Cross multiply
80,607,948.55x = 120,734,692.49 × 66,616,337.21 - Step 4: Simplify right side
80,607,948.55x = 8,042,902,987,422,362 - Step 5: Solve for x
x = 8,042,902,987,422,362/80,607,948.55 - Step 6: Final answer
x = 99,778,038.42
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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.