Finding the Fourth Proportional to 1,858,358,473.93, 2,787,957,668.65 and 614,785,996.78
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Solution
The fourth proportional to 1,858,358,473.93, 2,787,957,668.65 and 614,785,996.78 is: 922,317,926.46
Step by Step Solution
- Step 1: Write the proportion equation
1,858,358,473.93 : 2,787,957,668.65 = 614,785,996.78 : x - Step 2: Convert to fraction form
1,858,358,473.93/2,787,957,668.65 = 614,785,996.78/x - Step 3: Cross multiply
1,858,358,473.93x = 2,787,957,668.65 × 614,785,996.78 - Step 4: Simplify right side
1,858,358,473.93x = 1,713,997,334,303,334,144 - Step 5: Solve for x
x = 1,713,997,334,303,334,144/1,858,358,473.93 - Step 6: Final answer
x = 922,317,926.46
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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.