Finding the Fourth Proportional to 223,043,857.40, 307,808,830.09 and 133,750,339.42
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Solution
The fourth proportional to 223,043,857.40, 307,808,830.09 and 133,750,339.42 is: 184,580,449.70
Step by Step Solution
- Step 1: Write the proportion equation
223,043,857.40 : 307,808,830.09 = 133,750,339.42 : x - Step 2: Convert to fraction form
223,043,857.40/307,808,830.09 = 133,750,339.42/x - Step 3: Cross multiply
223,043,857.40x = 307,808,830.09 × 133,750,339.42 - Step 4: Simplify right side
223,043,857.40x = 41,169,535,501,010,608 - Step 5: Solve for x
x = 41,169,535,501,010,608/223,043,857.40 - Step 6: Final answer
x = 184,580,449.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.