Finding the Fourth Proportional to 79,119,937.20, 118,679,905.80 and 48,508,935.60
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Solution
The fourth proportional to 79,119,937.20, 118,679,905.80 and 48,508,935.60 is: 72,763,403.40
Step by Step Solution
- Step 1: Write the proportion equation
79,119,937.20 : 118,679,905.80 = 48,508,935.60 : x - Step 2: Convert to fraction form
79,119,937.20/118,679,905.80 = 48,508,935.60/x - Step 3: Cross multiply
79,119,937.20x = 118,679,905.80 × 48,508,935.60 - Step 4: Simplify right side
79,119,937.20x = 5,757,035,907,466,267 - Step 5: Solve for x
x = 5,757,035,907,466,267/79,119,937.20 - Step 6: Final answer
x = 72,763,403.40
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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.