Finding the Fourth Proportional to 98,302,723.48, 135,708,756.36 and 71,811,330.76
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Solution
The fourth proportional to 98,302,723.48, 135,708,756.36 and 71,811,330.76 is: 99,136,891.07
Step by Step Solution
- Step 1: Write the proportion equation
98,302,723.48 : 135,708,756.36 = 71,811,330.76 : x - Step 2: Convert to fraction form
98,302,723.48/135,708,756.36 = 71,811,330.76/x - Step 3: Cross multiply
98,302,723.48x = 135,708,756.36 × 71,811,330.76 - Step 4: Simplify right side
98,302,723.48x = 9,745,426,389,996,216 - Step 5: Solve for x
x = 9,745,426,389,996,216/98,302,723.48 - Step 6: Final answer
x = 99,136,891.07
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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.