Finding the Fourth Proportional to 133,122,670.80, 199,292,095.80 and 99,194,427.60
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Solution
The fourth proportional to 133,122,670.80, 199,292,095.80 and 99,194,427.60 is: 148,499,615.05
Step by Step Solution
- Step 1: Write the proportion equation
133,122,670.80 : 199,292,095.80 = 99,194,427.60 : x - Step 2: Convert to fraction form
133,122,670.80/199,292,095.80 = 99,194,427.60/x - Step 3: Cross multiply
133,122,670.80x = 199,292,095.80 × 99,194,427.60 - Step 4: Simplify right side
133,122,670.80x = 19,768,665,368,085,364 - Step 5: Solve for x
x = 19,768,665,368,085,364/133,122,670.80 - Step 6: Final answer
x = 148,499,615.05
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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.