Finding the Fourth Proportional to 61,804,651.08, 85,294,729.40 and 40,860,294.76
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Solution
The fourth proportional to 61,804,651.08, 85,294,729.40 and 40,860,294.76 is: 56,390,056.80
Step by Step Solution
- Step 1: Write the proportion equation
61,804,651.08 : 85,294,729.40 = 40,860,294.76 : x - Step 2: Convert to fraction form
61,804,651.08/85,294,729.40 = 40,860,294.76/x - Step 3: Cross multiply
61,804,651.08x = 85,294,729.40 × 40,860,294.76 - Step 4: Simplify right side
61,804,651.08x = 3,485,167,784,758,438 - Step 5: Solve for x
x = 3,485,167,784,758,438/61,804,651.08 - Step 6: Final answer
x = 56,390,056.80
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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.