Finding the Fourth Proportional to 65,203,438.90, 97,805,158.35 and 42,245,187.70
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Solution
The fourth proportional to 65,203,438.90, 97,805,158.35 and 42,245,187.70 is: 63,367,781.55
Step by Step Solution
- Step 1: Write the proportion equation
65,203,438.90 : 97,805,158.35 = 42,245,187.70 : x - Step 2: Convert to fraction form
65,203,438.90/97,805,158.35 = 42,245,187.70/x - Step 3: Cross multiply
65,203,438.90x = 97,805,158.35 × 42,245,187.70 - Step 4: Simplify right side
65,203,438.90x = 4,131,797,272,523,972.50 - Step 5: Solve for x
x = 4,131,797,272,523,972.50/65,203,438.90 - Step 6: Final answer
x = 63,367,781.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.