Finding the Fourth Proportional to 38,736,493.80, 58,104,740.70 and 13,206,330.60
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Solution
The fourth proportional to 38,736,493.80, 58,104,740.70 and 13,206,330.60 is: 19,809,495.90
Step by Step Solution
- Step 1: Write the proportion equation
38,736,493.80 : 58,104,740.70 = 13,206,330.60 : x - Step 2: Convert to fraction form
38,736,493.80/58,104,740.70 = 13,206,330.60/x - Step 3: Cross multiply
38,736,493.80x = 58,104,740.70 × 13,206,330.60 - Step 4: Simplify right side
38,736,493.80x = 767,350,415,111,475.50 - Step 5: Solve for x
x = 767,350,415,111,475.50/38,736,493.80 - Step 6: Final answer
x = 19,809,495.90
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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.