Finding the Fourth Proportional to 72,593,178.80, 108,889,768.20 and 56,153,937.20
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Solution
The fourth proportional to 72,593,178.80, 108,889,768.20 and 56,153,937.20 is: 84,230,905.80
Step by Step Solution
- Step 1: Write the proportion equation
72,593,178.80 : 108,889,768.20 = 56,153,937.20 : x - Step 2: Convert to fraction form
72,593,178.80/108,889,768.20 = 56,153,937.20/x - Step 3: Cross multiply
72,593,178.80x = 108,889,768.20 × 56,153,937.20 - Step 4: Simplify right side
72,593,178.80x = 6,114,589,205,225,358 - Step 5: Solve for x
x = 6,114,589,205,225,358/72,593,178.80 - Step 6: Final answer
x = 84,230,905.80
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1.5x scale
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.