Finding the Fourth Proportional to 1,396,415,655.84, 1,926,964,807.92 and 769,849,836.96
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Solution
The fourth proportional to 1,396,415,655.84, 1,926,964,807.92 and 769,849,836.96 is: 1,062,343,820.77
Step by Step Solution
- Step 1: Write the proportion equation
1,396,415,655.84 : 1,926,964,807.92 = 769,849,836.96 : x - Step 2: Convert to fraction form
1,396,415,655.84/1,926,964,807.92 = 769,849,836.96/x - Step 3: Cross multiply
1,396,415,655.84x = 1,926,964,807.92 × 769,849,836.96 - Step 4: Simplify right side
1,396,415,655.84x = 1,483,473,543,204,869,888 - Step 5: Solve for x
x = 1,483,473,543,204,869,888/1,396,415,655.84 - Step 6: Final answer
x = 1,062,343,820.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.