Finding the Fourth Proportional to 149,478,112.80, 224,217,169.20 and 80,603,359.20
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Solution
The fourth proportional to 149,478,112.80, 224,217,169.20 and 80,603,359.20 is: 120,905,038.80
Step by Step Solution
- Step 1: Write the proportion equation
149,478,112.80 : 224,217,169.20 = 80,603,359.20 : x - Step 2: Convert to fraction form
149,478,112.80/224,217,169.20 = 80,603,359.20/x - Step 3: Cross multiply
149,478,112.80x = 224,217,169.20 × 80,603,359.20 - Step 4: Simplify right side
149,478,112.80x = 18,072,657,027,834,776 - Step 5: Solve for x
x = 18,072,657,027,834,776/149,478,112.80 - Step 6: Final answer
x = 120,905,038.80
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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.