Finding the Fourth Proportional to 66,408,975.90, 91,609,534.71 and 54,032,908.14
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Solution
The fourth proportional to 66,408,975.90, 91,609,534.71 and 54,032,908.14 is: 74,537,056.27
Step by Step Solution
- Step 1: Write the proportion equation
66,408,975.90 : 91,609,534.71 = 54,032,908.14 : x - Step 2: Convert to fraction form
66,408,975.90/91,609,534.71 = 54,032,908.14/x - Step 3: Cross multiply
66,408,975.90x = 91,609,534.71 × 54,032,908.14 - Step 4: Simplify right side
66,408,975.90x = 4,949,929,573,733,571 - Step 5: Solve for x
x = 4,949,929,573,733,571/66,408,975.90 - Step 6: Final answer
x = 74,537,056.27
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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.