Finding the Fourth Proportional to 126,486,909.69, 189,749,240.79 and 40,228,130.49
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Solution
The fourth proportional to 126,486,909.69, 189,749,240.79 and 40,228,130.49 is: 60,348,199.17
Step by Step Solution
- Step 1: Write the proportion equation
126,486,909.69 : 189,749,240.79 = 40,228,130.49 : x - Step 2: Convert to fraction form
126,486,909.69/189,749,240.79 = 40,228,130.49/x - Step 3: Cross multiply
126,486,909.69x = 189,749,240.79 × 40,228,130.49 - Step 4: Simplify right side
126,486,909.69x = 7,633,257,218,878,551 - Step 5: Solve for x
x = 7,633,257,218,878,551/126,486,909.69 - Step 6: Final answer
x = 60,348,199.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.