Finding the Fourth Proportional to 97,882,489.68, 135,074,743.80 and 53,829,352.56
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Solution
The fourth proportional to 97,882,489.68, 135,074,743.80 and 53,829,352.56 is: 74,282,806.15
Step by Step Solution
- Step 1: Write the proportion equation
97,882,489.68 : 135,074,743.80 = 53,829,352.56 : x - Step 2: Convert to fraction form
97,882,489.68/135,074,743.80 = 53,829,352.56/x - Step 3: Cross multiply
97,882,489.68x = 135,074,743.80 × 53,829,352.56 - Step 4: Simplify right side
97,882,489.68x = 7,270,986,005,961,875 - Step 5: Solve for x
x = 7,270,986,005,961,875/97,882,489.68 - Step 6: Final answer
x = 74,282,806.15
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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.