Finding the Fourth Proportional to 74,558,378,973.94, 102,889,867,620.53 and 40,725,661,134.58
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Solution
The fourth proportional to 74,558,378,973.94, 102,889,867,620.53 and 40,725,661,134.58 is: 56,201,032,540.69
Step by Step Solution
- Step 1: Write the proportion equation
74,558,378,973.94 : 102,889,867,620.53 = 40,725,661,134.58 : x - Step 2: Convert to fraction form
74,558,378,973.94/102,889,867,620.53 = 40,725,661,134.58/x - Step 3: Cross multiply
74,558,378,973.94x = 102,889,867,620.53 × 40,725,661,134.58 - Step 4: Simplify right side
74,558,378,973.94x = 4,190,257,882,895,500,181,504 - Step 5: Solve for x
x = 4,190,257,882,895,500,181,504/74,558,378,973.94 - Step 6: Final answer
x = 56,201,032,540.69
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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.