Finding the Fourth Proportional to 40,248,069.21, 55,576,857.71 and 38,946,578.63
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Solution
The fourth proportional to 40,248,069.21, 55,576,857.71 and 38,946,578.63 is: 53,779,684.37
Step by Step Solution
- Step 1: Write the proportion equation
40,248,069.21 : 55,576,857.71 = 38,946,578.63 : x - Step 2: Convert to fraction form
40,248,069.21/55,576,857.71 = 38,946,578.63/x - Step 3: Cross multiply
40,248,069.21x = 55,576,857.71 × 38,946,578.63 - Step 4: Simplify right side
40,248,069.21x = 2,164,528,458,630,318.75 - Step 5: Solve for x
x = 2,164,528,458,630,318.75/40,248,069.21 - Step 6: Final answer
x = 53,779,684.37
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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.