Finding the Fourth Proportional to 79,656,813.70, 119,485,220.55 and 79,656,813.70
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Solution
The fourth proportional to 79,656,813.70, 119,485,220.55 and 79,656,813.70 is: 119,485,220.55
Step by Step Solution
- Step 1: Write the proportion equation
79,656,813.70 : 119,485,220.55 = 79,656,813.70 : x - Step 2: Convert to fraction form
79,656,813.70/119,485,220.55 = 79,656,813.70/x - Step 3: Cross multiply
79,656,813.70x = 119,485,220.55 × 79,656,813.70 - Step 4: Simplify right side
79,656,813.70x = 9,517,811,953,254,762 - Step 5: Solve for x
x = 9,517,811,953,254,762/79,656,813.70 - Step 6: Final answer
x = 119,485,220.55
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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.