Finding the Fourth Proportional to 129,031,068.20, 193,546,602.30 and 97,180,572.20
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Solution
The fourth proportional to 129,031,068.20, 193,546,602.30 and 97,180,572.20 is: 145,770,858.30
Step by Step Solution
- Step 1: Write the proportion equation
129,031,068.20 : 193,546,602.30 = 97,180,572.20 : x - Step 2: Convert to fraction form
129,031,068.20/193,546,602.30 = 97,180,572.20/x - Step 3: Cross multiply
129,031,068.20x = 193,546,602.30 × 97,180,572.20 - Step 4: Simplify right side
129,031,068.20x = 18,808,969,558,879,836 - Step 5: Solve for x
x = 18,808,969,558,879,836/129,031,068.20 - Step 6: Final answer
x = 145,770,858.30
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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.