Finding the Fourth Proportional to 97,931,804.76, 135,145,886.11 and 53,877,858.53
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Solution
The fourth proportional to 97,931,804.76, 135,145,886.11 and 53,877,858.53 is: 74,351,442.31
Step by Step Solution
- Step 1: Write the proportion equation
97,931,804.76 : 135,145,886.11 = 53,877,858.53 : x - Step 2: Convert to fraction form
97,931,804.76/135,145,886.11 = 53,877,858.53/x - Step 3: Cross multiply
97,931,804.76x = 135,145,886.11 × 53,877,858.53 - Step 4: Simplify right side
97,931,804.76x = 7,281,370,931,935,647 - Step 5: Solve for x
x = 7,281,370,931,935,647/97,931,804.76 - Step 6: Final answer
x = 74,351,442.31
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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.