Finding the Fourth Proportional to 1,566,413,989.65, 2,349,888,668.96 and 645,787,066.77
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Solution
The fourth proportional to 1,566,413,989.65, 2,349,888,668.96 and 645,787,066.77 is: 968,790,958.70
Step by Step Solution
- Step 1: Write the proportion equation
1,566,413,989.65 : 2,349,888,668.96 = 645,787,066.77 : x - Step 2: Convert to fraction form
1,566,413,989.65/2,349,888,668.96 = 645,787,066.77/x - Step 3: Cross multiply
1,566,413,989.65x = 2,349,888,668.96 × 645,787,066.77 - Step 4: Simplify right side
1,566,413,989.65x = 1,517,527,710,760,508,928 - Step 5: Solve for x
x = 1,517,527,710,760,508,928/1,566,413,989.65 - Step 6: Final answer
x = 968,790,958.70
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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.